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mini wireless 305 earpiece with louder sound 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. How to use: Wear the skin color loop on your neck or under your close if necessary. Connect the port with your cell phone and talk to the microphone just like an normal handsfree set but totally with no wire apear. 1. Open battery door, install the battery perfectly and push battery door into battery box gently. Put the earpiece into ear canal by holding the handle and the slight sound of current indicate working order. 2. Adjust the volume of drive equipment to reach satisfaction. 3. Set mobile phone to automatic return or vibration. 4. Put the inductive loop around your neck (or bluetooth pen, glasses, loop, watch..ect diferent inductions)and connect the inductive loop to the drive equipments (mobile phone, radio) which are attached to or beneath users clothing. One transmits message with radio, the other wearing an earpiece and inductive loop who also has a radio can hear the message very clear. Because the inductive loop inducts the message from the radio to earpiece and then earpiece transforms the electromagnetic inductive signal to audio signal to reach the wireless inception. Communication distances and radio power are the direct proportion. You can communicate with others freely once network exist when you use mobile phone 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. Structure: - Mini wireless earpiece consists of specialized chip, shell, faceplate, battery door, handle etc. 1.Battery door: Open battery door by fingertip, install the battery perfectly and push the battery door to battery box. 2.Handle: Clarity and high strength string help you to take out the earpiece from ear canal easily. Technical specification: . Mini wireless earpiece (306 earpiece) receives signal by inductive coil. across electromagnetic fields . Receiving distance: 20-40 cm . Standard Zinc-air battery: type 337 . Battery life: about 3.5 hours . Audio bandwidth: from 300 Hz to 4 KHz . Distortion: <2% . Size: 3x5x7mm . Working frequency: all frequencies . Distance between inductive coil and Mini wireless earpiece: about 20-40 cm What`s inside the box? 1 x 306 earpiece with box Learn More

Features: Completely wireless kit with transmitter, receiver and covert ear piece Virtually undetectable earbud Discreet receiver inside wallet Uses walkie talkie for remote transmission Specifications: Product Description: Wireless Audio Spy Kit - Transmitter + Receiver + Earpiece Operating Frequency: Channel 5: 446. 0550 Channel 15: 446. 0550 Power Supply Walkie talkie: Rechargeable battery (included) Power Supply Wallet Receiver: 5x AAA batteries(not included) Power Supply Earbud: sr416sw battery (included) Power Supply Walkie talkie: Built-in battery Transmission Distance Earbud to Wallet: 140mm Transmission Distance Walkie Talkie to Wallet: 150m Buttons/Ports/Features: Wallet transmitter: ON/OFF switch Frequency switch (channel 5 or 15) Walkie talkie: Push to talk button ON/OFF/volume knob MIC/Earphone jack Monitor button Antenna port Working temperature: -5 to 45 Celsius Dimensions: -Wallet: 120mm x 95mm x 19mm -Earbud: 7.9mm Diameter x 12.7mm -Walkie Talkie: 114mm x 57mm x 32mm Charger input power: 110 - 220V Benefits of using mini Earpiece set with you cell phone: if you are a student you pass your exams without prior preparation. You don't need to fill up your head with heaps of facts and dates. Your partner will give them to you over the phone. if you are a businessman you get information from your colleagues in real time while carrying on negotiations. You will not get into embarrassing situations when you are stumped for an answer. if you are a politician you look confident in front of your audience as you don't have to sight-read your speech anymore. Your assistant will make sure you remember all your arguments. if you are a security guard you secretly get and give instructions to your co-workers. You stait intermingled with the crowd and keep the situation under control. if you are a gambler you get help from your friend when you need advice during the game. Nobody will notice that you cheat. if you are a host of the show you are in the center of everybody's attention. You can make no mistakes, the mini earpiece and your team will help you out. Learn More

This GSM ID card (box) size is the same as ID card. The frequency is 850/900/1800/1900 Mhz so can work for all countries. The sim card slot only support micro sim card. The transmitter range from GSM card to earpiece is around 40-50cm, depends on which earpiece you use. Build-in high sensitive microphone. The inside indicator can show the on/off and battery power (when charging, the indicator will blink). When you charging this device, pls make sure turn on it, then can be charged! Learn More