Color Blue Brand KWEN Model Link-491 Material PC Quantity 1 Piece Shade Of Color Blue Bluetooth Version V4.0 Operating Range 20m (subject to working environment) Standby Time 5 month Applicable Products IPHONE 5IPHONE 4SOthersiOS 6.13 Android 4.3 and higher Battery Type Li-ion battery Built-in Battery Capacity 80 mAh Other Features 1. This anti-lost can help you to find you cellphone. Press its calling key it will send out an alarm. 2. When the distance between the cellphone and the anti-lost device is not in the pre-set range both them will send out ring to remind you. Packing List 1 x Anti-lost device 1 x Micro USB cable(18cm) 1 x Strap 1 x Chinese / English manual