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Specification Color: Black Connector(s): 3.5mm Jack Bandwidth :300 Hz to 4 KHz Working time: 5 hrs Learn More

True wireless bluetooth headset , Bluetooth 5.0, Automatically connected A New Generation of Bluetooth 5.0, faster and more stable Redmi AirDots is equipped with the latest Bluetooth 5.0 chip, the data transfer rate is up to 2 times compared with the previous generation, the connection is faster and more stable. Listening to songs and playing games are smoother. 7.2mm Dynamic unit And DSP intelligent environment noise reduction 4hr. of battery life on one charge, 12hr. of battery life with charging case, One earphone with 40Mah Battery,Charging Box with 300Mah Battery Learn More

User Guide: Installation： A: Intall the 337 battery to micro earpiece, plug in your ear. B：Cut GSM SIM card to Micro SIM card(like iphone4 SIM card size)，put it into the GSM car key slot, please check the correct direction. C:Place Gsm car key a right position to transmit audio signal to earpiece— distance is 0-70cm . D: Press the Power Button for 3 seconds, your will hear “system Start, please waiting” from your earpiece. press this button for 3 seconds again it will power off, you will hear“system Power off” from your earpiece E:You can press voice button to adjust the volume, three level(large,middle,small), when it adjust to large volume you will listen “di,di” sound in earpiece, press to change in cycle. F:`You can press Middle button to know the work status : If the yellow indicator lights, the machine is now power on . If no indicator lights, the machine is now power off. Now, install finished you can call the SIM card number in this this machine, you can listen and speak. Charging: Connect it to your cell phone charger or PC’USB port for changing via USB cable, during charging the LED will turn on RED, when is full will change to green. Learn More

please note that this is only earpiece, not full set, the buyer should have inductions then can work with this earpiece. if buyer don't have it, then can buy full set in our store. this AMK808 earpiece is perfectly working with our GSM card box. We also have other AMK earpiece models, like 258A, A818, which is the smallest size . if you need any other earpiece, welcome to contact us. Description: Mini wireless earpiece is a micro-mini wireless inductive receiver which transforms audio signal through electromagnetic induction. These products make the covert communication possible when it is inconvenient to expose earpieces. earpiece is widely used in many departments .Using this device;You can hear the voice from the person other side,and the person of the other side can also hear your vioce. Hotspots: Small, light, easy to conceal. Comfortable for wearing with an optimum anatomic design Work principle: Mini wireless earpiece is a one-way reception equipment driven by electromagnetic induction and is used in conjunction with drive equipments, such as radio and mobile phone PRODUCT DESCRIPTION On many occasions, you possibly don’t hope others notice your operating mobile-phone or sth like this. Only 6x10mm(min 5x7mm) the 205 Completely-in-the-Canal wireless earphone is designed to be entirely concealed in the ear canal. It is the ideal device for unobtrusive reception without cables or wires of any kind. It is a new generation of earphone.205 possibly is the tinyest wireless receiver in the world. Virtually invisible when worn, 205 rests deep in the ear canal. The covert Assembly offers the best communications solution at times when secrecy and privacy are of paramount importance. For example, Surveillance, VIP Protection, Investigation, etc. The technical specifications of individual components allow them to be used with a wide range of personal radios. In the professional security field, this new micro receiver will be highly appreciated by security forces and special army units.205 allows you to inform, command and alert your team, without them carrying visible. Learn More

Technique parameter 1.Frequency band:910A (UHF band),910B(ISM band short antenna)band fixed frequency point,using soft antenna to rod antenna to receive. 2.Transmission distance:2000m(max 5000m)in widen area,which is according to its using conditions. 3.Power supply:the transceivers use high energy Lithium batteries witch can be used for 36 hours to monitos and 16 hours to transmit in total. 4.Sensitivty (all directions )of sound picking up is better than 12db .Differentiate rate is high within 100 square meters .Impedance of audio input circuitry is low. 5.The jack (3.5mm) of the monitor head can be input all kinds of audio signals,such as monitoring audio frequency and MP3 output,and so on. 6.The input signal cab ve regulated for a loud and discortionless sound ,it can use the MP3 as a signal source to test which the provided connecting wire. 7.You can insert a three-way plug to the earphone hole ,thus ,you can connect the sound pickup to the recorder to record the content you heard at the same time as you hearing. attention: * Usedtoautomaticallypoweroffafter thecharge togreencontinuedstorage ofadditionalpowercanchargethe maximuml-hourand extendedbattery life.External powercharger foruse must beinfullchargestate (when thegreen lightoff) for, ifyouhuminterferencefrom thepullreceiverwill reduceor disappear.Pleasedo not uselongenoughto addelectricpowerto save andonceevery two months.Non-covered boxorKaicould damage the product.Transceivermust be matchedwith(packagemay be differentbetween thetransceiverfrequency). Learn More

Specifications: Working Radius: 15 meters Output power: 4W Power Supply: can work via battery and two power adapters Battery Information: Lithium-ion 3.7V 4000mA Battery Working Time: 2 hours maximum Adapters Details: AC 110~250V to DC 12V, car 12V to DC 12V, both 4000mA Antennas Details: high-tech rubber (8 units) Dimensions Of Device: 130x80x38mm(not include antennas) Weight Of Product: 800g Package List: 1 * Portable Signal Jammer 1 * AC adaptor 1 * Car adaptor 1 * Antenna 1 * User Manual Advantages: Multiple bands High output power Cooling fan inside , Could be used in car directly,With car charger and AC charger With Built-in Battery:4000mA/h,Charge full time about 6Hours,Working time:1-2Hours. Application Area: it can be applied at meeting rooms, conference rooms, trains, bus and more For some locations of special purpose such as hospitals, gas stations and more, Please do field test first to make sure no interference happened to the normal operation of their equipment and instrument Fully protected against: iPhone3,iPhone4/S,iPhone5/S/C,iPhone6/plus/S/C iPad2/3/4 All Sumsung 3G 4G cellphone HTC cellphone Moto cellphone All other cellphones GPS Tracker WiFi Device Lojack Tracker Learn More

Product description Color:Black Instructions ★Find a hidden camera *Step 1: To keep a dim environment. In a day, close all doors, draw all curtains, and turn off all lights. At night, turn off all lights, please. Dim environment is an important advantage. *Step 2: To Turn on the power switch. *Step 3: To press the infrared led light switch, the led light shines. It is best to press the switch twice. For the first time, the led light shines in a low frequency. Twice, press it for a longer time until the light flashes in a high frequency(Notice: short press turns off the light). Thus, the reflecting lights from a camera twinkles very quickly, and this is advantageous to find a hidden camera. *Step 4: To look for a hidden camera through the infrared vision window with your eyes. Move slowly around the room, and go close to every place where you doubt a camera is set probably. you maybe need to go back and forth in different vision angles until that you find a hidden camera or you judge no camera is set. *Step 5: To press the infrared led light switch when the process is over, the led lights stop shining. *Notice: Three key advantages: a dim environment, a close distance, a right vision angle (it is best to tend to 90 degree, and otherwise, it is worse to tend to 180 degree, in which you even can’t find a camera near you). ★Guard against a theft *Step 1: To turn on the power switch. *Step 2: To hang it on a window, a door handle, a suitcase or other items. *Step 3: To press the vibration alarm switch, the red indicator light shines, that indicates the device is in a vibration alarm mode. *Step 4: A light vibration can trigger a 80 decibels alarm, and at the same time light ring in the edges flashes. *Step 5: to press the vibration alarm switch, an alarm is turned off. Learn More

Quick Details Brand Name: China MicSpy Earpiece Model Number: 218 Earpiece Style: In-Ear Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth, Microphone, Noise Cancelling Place of Origin: Guangdong, China (Mainland) Model Name: Mic Spy Earpiece 218 Color: Black Color head Magnetic: No Working Time: 8h Size: Dia 7 x H10mm With IC: No Max Volume@3Khz: 100dB Model of Noise Reduction: NO Wight: 0.8 Mic Spy Earpiece 218: Mic Spy Earpiece 218 Packaging & Delivery Delivery Detail: 5 Introduction   Covert Communication Earpiece is an inductive receiver with ergonomic design. It is integrated with loopset to be used on radios. Earpiece is put into ear canal while loopset is wore inside user’ clothes. It can be widely used in national security, criminal investigation, Anti-terrorism, etc in worldwide police. Usually such kinds covert operators face high personal security risk when performing a task. Our products adopt hi-tech which provide a degree of body protection and help to enhance combat capability Currently it is widely used in criminal investigation, public security, counter-narcotics, national security, anti-evil, special police, and other law enforcement agencies.criminal investigation, public security, counter-narcotics, national security, Anti-terrorism, anti-evil, special police, negotiations, inquest, gambling, broadcasting and other fields.   Structure Covert communication earpiece+ Inductive loopset+ Wireless PTT(option)   Work principle Covert Communication Earpiece is an inductive receiver based on magnetic induction. It works with audio amplificatory devices, such as radios, mobile phone, repeater, language trainer,etc   Product Feature Small dimensions and weight, easy for concealing Ergonomic shape design, comfortable long time wearing Noise reduction, Soft suppression, AGC(Automatic Gain Control) meets professional request.   Technology     Technical specification: . Mini wireless earpiece receives signal by inductive coil . across electromagnetic fields . Receiving distance: 50-70 cm (But Base on how stornge the Coil) . Standard Zinc-air battery: type 337 . Battery life: about 3-8 hours (Base on what quality batteries you use) . Audio bandwidth: from 300 Hz to 4 KHz . Distortion: <2% . Working frequency: all frequencies . Distance between inductive coil and Mini wireless earpiece: about 70-100 cm (But Base on how stornge the Coil)   Our Services   Packaging & Shipping 1pcs* 218 Earpiece How fast do you dispatch my order? All products in our online store are in stock and are directly available for dispatch. That why we are able to sent out the goods within 1 working day. Which types of products are embargo in express delivery? Imitation brand, liquid, powder, food, fresh produce, pharmaceuticals, corrosive and other contraband. What is the Dispatch & Delivery Time of UK/US/DE Direct Service? The orders will be dispatched in 1 — 3 business days after we receive your confirmed payment. The delivery time of UK/ US direct service is 3 — 5 working days. What shipping methods do you offer and what is the estimated delivery date? Where can I check the shipping status of my order? AIRMAIL WITH TRACK NUMBER Delivery speed: 7-14 days. The shipping method will be via Hongkong post or China post. Delivery service is the local post office such as USPS. FAQ   Q:What Applications For ? A: Criminal investigation, public security, anti-terrorist, drug smuggling investigation, negotiation.   Q:Can The Covert Earpiece Connect Without Other Kit by Bluetooth of Phone ? A:Well, at now all covert Micro earpiece model can’t be connect without other kits .But Don’t Worry ! That You can take the GSM Kits For Earpice , When you use the GSM Kits , you no need the phone already, Any Way , We have strong team , we will make them   Q:Can Covert Earpiece Be Waterproof ? A:At Now All Model Is Not Waterproof Yet ..   Q:Does It Has Turn Off Button ? And How To Turn off it ? A:The all covert Micro earpiece doesn’t have any button for turn off/on . When You Chose the hold ,it will be turn on . When you take of the hold , it will be turn off . Like Photo Shown You : --- Now it is turn on --- Now it is Turn off   Q:What Is The Different ? Follow is Different Ponit List,Have a look

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Helper eye &helper pen user guide 1.Use an android mobile which support OTG function to down load app: helper eye 2.Contact helper eye camera with mobile,Go to this app ,you will see the camera work 3.go app Setting to set your mail inbox 4.helper pen blue tooth pair with mobile 5.press the functional button from helper pen , then the helper eye camera will take photos,and the mobile will send out every photos to your email automatically Learn More