Function: - Two-ways finding: phone or tablet PC and HIFINDER can find each other - Warning device: when HIFINDER disconnected with phone or tablet PC both of them will have warning alert. - Remote control photography: can take pictures and videos with phone or tablet PC by remote control. - New Bluetooth V4.0. Low power consumption ultra-long standby time. Specifications: - Communication: Bluetooth V4.0 - Transmission: FH-SS - Frequency: 2.4GHz~2.4835GHz - Workable distance: 20M (Depends on the working condition) - Power: 1 x CR2032 - Working time: ultra-long standby time: 14 months working time: more than 6 months - Unit size: 53 x 32 x 11mm Operation: - Switch the ON/OFF key blue light will flashing 3 times then the power is on. - Install the APP into smartphone or tablet PC. iOS system: download HIFINDER from APP store. Android system: download HIFINDER from Google play. - Open APP of HIFINDER and click the searching icon phone or tablet PC will match the HIFINDER automatically. Now you can enjoy your searching finding and remote photography functions. Working condition: Ambient Temperature: -20~+50’C; Relative humidity: 10~90%.