Material: ABS Sound quality: HIFI sound quality Bluetooth version: V5.3 Noise reduction version: cvc8.0 Bluetooth Protocol: HFP/HSP/A2DP/AVRCP/OPP/PBAP Endurance call time: 220h [used with the charging case] Music Playing Time: about 160h [for use with the charging case] Waterproof Level: IPX7 Connection Method: single/double free to use Transmission distance: 10 meters/33ft Charging Time: About 1 hours Package List: TWS Headset*1 Charging Cable*1 Earcaps*3 Pair Manual*1