Name: Magnetic True Wireless Neckband Headphones Model: JR-DS1 BT version: V5.3 Audio decoding: AAC, SBC Supported protocols: HSP, HFP, A2DP, AVRCP BT range: 10m (barrier-free open environment) Frequency response range: 20Hz-20KHz Speaker: φ13mm Music time: about 7h (80% volume) Calling time: about 5h (80% volume) Standby time (connected): about 35h Earphone battery capacity: 37mAh Neckband battery capacity: 160mAh Earphone charging time: about 1.5h Neckband charging time: about 1.5h Charging earphones via neckband: about 1.5 charging cycles Neckband charging port: TYPE-C Neckband charging input: 5V⎓200mA Material: ABS+PC Net weight: 27g