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.
Functions:
| Parameters | Description |
| Range | Unlimited |
| Number of microphones | 1 |
| Max. distance from the microphone | 10 and more meters |
| Possibility of non-stop operation when connected to electricity | yes |
| Weight | 60g |
| Dimensions | 5,2 x 3,0 x 1,7 cm |
| 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 |
| Operators support | all |
| Voice activation | yes |
| Vibration sensor activation | no |
| Call number filter | no |
| GSM frequency ranges | 850/900/1800/1900 |
| GPRS | Upload60,TCP/IP |
| Working voltage | 3.4—4.2V DC |
| Standby current | ≈2.5mA |
| Start sound-controlling current | ≈30mA |
| Speaking current | ≈150mA |
| Working ambient temperature | -20℃~+70℃ |
| Working ambient humidity | 20%~80% RH |
| microphone attributes: | |
| Type | Electret Condenser |
| Direction | Omnidirectional |
| Frequence range | 100Hz ~ 10kHz |
| Sensitivity | -53dB ±3dB @ 74dB SPL |
| S/N ratio | X |
| Size | 2.57mm Dia |
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.
