1. Material: ABS+PC 2. Bluetooth version: JL7003D V5.3 3. Bluetooth protocols: HFP, HSP, A2DP, AVRCP, PBAP 4. Bluetooth distance: less than or equal to 10m 5. Speaker size: 13mm 6. Noise reduction depth: -35dB 7. Frequency response range: 20Hz-20kHz 8. Microphone sensitivity: -42+/-dB 9. Listening to music/call time: about 4 hours (ANC off), about 3 hours (ANC on) 10. Battery capacity: 3.7V/25mAh x 2 for earphones, 3.7V/300mAh for charging case 11. Charging time: about 1H for earphones, about 2H for charging case 12. Charging interface: Type-C 13. Small and mini, easy to carry 14. ANC noise reduction technology, comfortable to wear 15. Using Bluetooth 5.3 chip, low latency, stable transmission 16. Compatible with a wide range of Bluetooth devices, easily switch between smartphones, tablets and laptops.
