Brand Cheers Model Q1 Quantity 1 Color Green + black Bluetooth Version V2.1 + EDR Ear Coupling Earbud Talk Time 6 Hour Standby Time 80~120 Hour Operating Range 10 meter Compatibility V2.1 + EDR and the earlier version Microphone Yes Supports Music Format MP3 Built-in Battery Capacity 90mAh Compatible With The device with Bluetooth V2.1 + EDR and the earlier version BQB Certification No Other Features Support agreement: HSP HFP A2DP & AVRCP; Music playing time: 4 hours; Battery type: lithium-ion polymer battery Packing List 1 x Bluetooth headset 1 x AC power charger adapter (US Plug input: 100~240V output: 5V 600mAh) 1 x USB cable (47cm) 1 x Single earphone (50cm-cable) 1 x Ear hook 1 x Ear cap 1 x Chinese / English user manual