1Made of ABS plastic and high dense copper, sturdy and durable 2App control, works for both iOS and Android system and automatic & manual unlocking 3Anti-theft design, any try to damage the lock triggers 105dB alarm 4Power can be checked on cellphones and LED red light flashes for reminding of timely charging 5Perfect for bike, motorcycle, gates and etcDescription:This smart lock can keep your bike secure with easy operation, you don't have to worry about losing the key of your bike, just unlock it with with phone.Made of ABS plastic, it's durable and waterproof, and the cable is made of copper, tough and sturdy for security. This lock works well for both iOS and Android system, suitable for most samrtphones. The anti-theft design is fabulous, any try to damage the look would triggers 105dB alarm, loud enough to make the bad guy give up. You can check the remaining power on your phones and even if you forget it, the LED light would flashes to remind you of timely charging. This is perfect for daily use for bike, motorcycle, gates and etc. Add it to your chart and live a secure life from now.Features: 1. Made of ABS plastic and high dense copper, sturdy and durable.2. App control, works for both iOS and Android systemand automatic & manual unlocking.3. Anti-theft design, any try to damage the lock triggers 105dB alarm. 4. Power can be checked on cellphones and LED red light flashes for reminding of timely charging. 5. Perfect for bike, motorcycle, gates and etc.