(HS-WOOS_WHB-17 Bluetooth Magnetic Earphone) with Metal Sports Series(Extra Bass - Hands Free) 4D Surround sound earphones with perfect sound quality, Version 5.0+EDR, Pairing name WHB-17, Transmit range=10M, Support software agreement=A2DP1.2, HFP1.6, AVRCP1.4, HSP. Rechargeable lithium-ion battery, Charging Time <2.5 hrs, 6 hrs Playback Time, 100 Standby hrs, The multipoint connections voice prompts with flexible design, Exceptional sound and quality, Small comfortable and convenient design effortless and effective, The ear buds allow for a comfortable fit without falling out perfect for use in the office-home-gym- or outdoors.