Brand CHEERLINK Model QT-19 Quantity 1 Color White + black Bluetooth Version V2.1 Operating Range 8 meter Compatibility V2.0 Microphone Yes Radio No Supports Music Format WMA / WAV / MP3 Power Supply Built-in Battery US plug input voltage 110~210V Built-in Battery Capacity 350mAh Compatible With Iphone Android Bluetooth phone Other Features Screen Size 1.0 inch; Incoming call / SMS vibration alert supports voice call and can be used as Bluetooth speaker BQB Certification No Packing List 1 x Bluetooth bracelet 1 x AC power charger adapter (2-flat-pin plug 110~210V 100cm-cable) 1 x English user manual