Search results for 'gsm card box'

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

How does it work? The new developed GSM BOX has a built-in dual band GSM module that works in both of Four Band mobile phone networks. Once insert a GSM SIM card and turn on the power, it will automatically pick up calls from any mobile phone or telephone. The powerful inductive coil will creat strong signals to drive earpieces within 30-50cm distance. One pc 35db top sensitive microphone ensures your partner hear the whisper voices, even the GSM BOX is hidden under the clothes. GSM BOX has a builtin rechargeable 650mAh battery. supports more than 2 hours talking time, or 48 hours Standby time. 3in1 GSM-ID-Card 85x50x4.5mm As a master card Only 30 grams IMEI Unique can work in any country Built-in induction 3-4h talking time what is included in tha packing for 1pc? 1 x vip pro GSM card box 1 x 808 earpiece 1 x original 337 battery Welcome bulk order, do not hesitate to contact us! 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