REMAX OpenBuds P3 Metal Open-Ear OWS Wireless Bluetooth Earphone 1. Bluetooth version: V5.3 2. Transmission range: about 10m 3. Speaker driver unit: 14.2mm 4. Rated power: 40mW 5. Impedance: about 16 ohm 6. Frequency response: 60HZ - 16KHZ 7. Battery capacity: 300mAh for charging compartment, 65mAh for earphone 8. Standby time: about 90 days 9. Charging time: about 1.5H 10. Playback time: about 6H 11. Input: DC 5V 300mA 12. Material: plastic + aluminum alloy 13. Size: about 9.1 x 5.1 x 2.8cm Features: 1. IPX6 life-grade waterproof, waterproof and splash-proof, no fear of wind, rain and sweat to exercise freely 2. Sensory ambient sound, travel safer 3. Comfortable to wear, stable and does not fall off 4. ACS panoramic sound, digital sound enhancement technology 5. Bluetooth 5.3, latency as low as 40ms, synchronized audio and video, more stable, faster, lower consumption, fast connection 6. Pulse DT3.0 directional sound transmission into the ear, accurate and efficient sound, comfortable and no sound leakage 7. Separate touch control function for both left and right ears to cut songs, answer and hang up phone calls, and wake up voice assistant (xhc-03) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia