[HK Warehouse] Original Blackview AirBuds 2 IPX4 Waterproof Noise Isolation Bluetooth Earphone with Charging Box, Supports Touch & Master-slave Switching & HD Call & Voice Assistant(Black)

Features: 1. Bluetooth 5.0, faster connection and lower delay 2. 8mm composite film moving-coil loudspeaker, enjoy more sound details 3. Noise isolation, clear call and good sound quality 4. Support master-slave switching 5. Touch operation, supporting HD calls and supporting voice assistants and other functions 6. The battery life with the charging box is up to 20 hours 7. IPX7 waterproof (actually IPX4) 8. Stylish appearance Product specifications: 1. earphone size: 27.34x17.33x24.29mm 2. Headset size: 67.09x35.80x22.50mm 3. Headphones weight: 9.75g 4. Charging box weight: 50g 5. Bluetooth chip: WT230U 6. Charging box IC: N76E003 7. Bluetooth version: Bluetooth 5.0 8. Bluetooth protocol: A2DP1.3/AVRCP1.5/HFP1.6/SPP 9. Audio decoding: AAC/SBC 10. charging interface of charging box: type-C 11. earphone battery specification: 50mAh 12. charging box battery specification: 380mAh 13. Standby time: 50 hours 14. Play time: 5 hours 15. charging time of earphone: 1.3 hours 16. Charging time of charging box: 1 hour 17. Bluetooth distance: 10m 18. Storage temperature: -20-70 degrees celsius 19. service temperature: -10-55 degrees celsius