JOYROOM JR-TL6 Ture Wireless TWS Bluetooth V5.0 Earphone with LED Display(White)1. Type: in-ear 2. Bluetooth version: V5.0 3. Audio decoding protocol: AAC/SBC 4. Support protocol: HSP, HFP,A2DP, AVRCP 5. Frequency range: 50HZ-10KHZ 6. Speaker: diameter|10mm 7. Microphone sensitivity: -42+/-3dB 8. battery Capacity: 40mAh 9. Battery capacity of charging case: 300mAh 10. Play time: 3.5 hours 11. Talk time: 3.5 hours 12. Charging time of earphone: about 1.5 hours 13. Charging time of charging case: about 1.5 hours 14. Standby time: about 120H (connected state) 15. Input: 5V-1A 16. Charging Case Size: 60.48x49.13x28.86mm 17. Material: ABS+silicone 18. Net weight: 37.7g