Color White Brand SUICEN Model AX-663 Material Plastic Quantity 1 Piece Ear Coupling Neckband Bluetooth Version V4.0 Operating Range 10M Radio Tuner No Microphone Yes Supports Music Yes Connects Two Phones Simultaneously Yes Applicable Products Otherscellphones tablets notebooks or other devices with bluetooth Built-in Battery Capacity 150 mAh Battery Type Li-ion battery Talk Time 7 Hour Music Play Time 4 hours Standby Time 60 Hour Plug Specifications OthersUSB2.0 Power Supply DC 5V Other Features Retractable foldable portableVoice dialing functionChinese voice prompt states: incoming call turn on / off pairing successful (Bluetooth)To answer the call please say "YES" in English say "NO" to reject Switch songs volume + / -Iphone battery display Packing List 1 x Bluetooth Headset 1 x USB Cable (25cm) 1 x English & Chinese User Manual 1 x Carrying Pouch