LongLife series 20PRO K+ is an upgraded version of LongLife series, due to a surge in demand for even better sound quality we have decied to use a Knowles Microphone on the device which gives it competitive edge at an affordable price.
GSM Spy Bug LONGLIFE 20PRO K+ can last for up to 20 days in stand-by mode. It is a very reliable listening device with easy installation and very good quality in standby and call-back performance. The design is similar to the rest of our other LongLife units, focusing on a minimalist look so the device can be very easily disguised.
The sound quality is very similar to the Glite series where we are using a similar microphone but a more advanced chip structure, this unit stays very basic in terms of commands. Voiceback activation is the only command.
|Number of microphones||1|
|Max. distance from the microphone||10 and more meters|
|Possibility of non-stop operation when connected to electricity||yes|
|Dimensions||45 x 35 x 30mm|
|Battery life in stand by||16 - 20 days|
|Battery life in automatic activation mode||2 - 4 days|
|Battery life in continuous call||8 - 12 hours|
|Vibration sensor activation||no|
|Call number filter||no|
|GSM frequency ranges||850/900/1800/1900|
|Working voltage||3.4—4.2V DC|
|Start sound-controlling current||≈30mA|
|Working ambient temperature||-20℃~+70℃|
|Working ambient humidity||20%~80% RH|
|Frequence range||100Hz ~ 10kHz|
|Sensitivity||-53dB ±3dB @ 74dB SPL|