Smart bluetooth single tongue lock $ 84.75 Panel color: silver Lock body material: Panel: Zinc alloy Handle: Zinc alloy Key: Zinc alloy Electroplating process: anti-fingerprint treatment Unlocking method: TT Lock App, password, mechanical key Bluetooth standard: Bluetooth 4.1 BLE Support system: Android 4.3 / IOS.0 or higher version mobile phone system Number of passwords: APP shared password-unlimited, user set password-150pcs Power supply: 4 alkaline dry batteries Charging interface: MICRO USB Battery life: can be unlocked 9000 times Standby time: 1 year Low battery alarm: The red light flashes for 10 seconds after unlocking. It indicates that the current is insufficient, and it can be unlocked up to 50 times. Working current: less than 200 mA Button type: capacitive touch button Unlocking time: 1.5 seconds Working temperature: -20 to 65
