REMAX OpenBuds P2 Clip-On Bone Conduction Bluetooth Earphone Sports Music Wireless Earphone 1. Bluetooth version: V5.3 2. Transmission range: about 10m 3. Support protocol: A2DP HFP HSP AVRCP 4. Bluetooth chip: JL AD6973D 5. Speaker driver unit: 11.3mm 6. Rated power: 0.5W 7. Impedance: about 8 ohms 8. Frequency Response: 240HZ - 15KHZ 9. Battery capacity: 400mAh for the charging compartment, 50mAh for the earphone. 10. Charging compartment rechargeable times: 4 times 11. Standby time: about 500H 12. Charging time: about 1.5H 13. Playback time: about 25H 14. Charging port: Type-C 15. Material: PC+ABS 16. Weight: about 71g 17. Size: about 7.8 x 4.5 x 4.3cm Features: 1. Lightweight clip-ear, stable and comfortable to wear, not into the ear design, long wear without pain, senseless wear 2. Large-capacity batteries, longer battery life 3. Simple operation, sensitive and convenient, randomly cut the song, answer and hang up the phone, wake up the voice assistant 4. High-speed Bluetooth 5.3, fast connection, call, listen to songs, games with more stable and lower power consumption and higher processing performance 5. Pulse DT3.0, directional sound transmission, beam into the ear, directional open space sound, avoid sound leakage, wear stable and do not fall off 6. Bone conduction vibrator, open listening acoustic structure, to create a new sound field, bass surging, treble transparent, delicate vocals 7. 38ms game low latency, operation is one step faster, sound and picture synchronization