Brand N/A Model Relaxed Quantity 1 Color White + silver Bluetooth Version Bluetooth v3.0 Ear Coupling Wireless and Bluetooth Talk Time 5 Hour Standby Time 100 Hour Operating Range 10 meter Compatibility Compatible with Bluetooth v2.0 / v1.0 Microphone Yes Power Supply Built-in Battery Compatible With Iphone series and Android series Built-in Battery Capacity 400mAh Other Features Interface: Micro USB; Noise cancellation; Uses A2DP technology; Voice prompts function to remind you battery power and connection status; Multi-point connection supports two devices at the same time; Talk time up to 5 hours; Standby time up to 8 days. Packing List 1 x Bluetooth headset 1 x 2-flat-pin plug power adapter (100~240V / 29cm) 1 x Ear hook 1 x Earphone (52cm) 1 x Chinese / English user manual