Foldable Four Channels Wireless Stereo Bluetooth Headphone

HF680S Foldable Four Channels Wireless Stereo Bluetooth Headphones Specifications: Item & Model No. Wireless Bluetooth 4.0 Headphone HF680S Use Computer / Mobile phone / Iphone / Ipad / Iwatch Color Red / Black Bluetooth Version V2.1/V4.0+EDR, Class 2 Profiles A2DP, AVRCP , HFP&HSP Frequency response 2.4GHz-2.48GHz Chipset CSR Battery capacity 300 mAh Rechargeable Lithium Battery Music Time >8hrs Talking Time >10hrs Standby Time >300hrs Charging time 2 hours Operation Range