1. Bluetooth version: V5.3
2. Transmission range: about 10m
3. Speaker driver: 13mm
4. Frequency response: 20Hz-20KHz
5. Rated power: 2mW
6. Impedance: about 32 ohms
7. Battery capacity: 400mAh for charging compartment, 35mAh for earphone
8. Standby time: about 730 days
9. Charging time: about 1.5H
10. Playback time: about 7H
11. Charging compartment for headphones: about 6 times
12. Charging port: Type-C
13. Material: PC
14. Weight: about 59g

Features:
1. Open the cover can be automatically linked with the phone, wear the headset can be used
2. Dual-core Bluetooth 5.3, stable upgrade, lower power consumption
3. High-density lithium polymer core, 70 + 400mAh, thin and light, not bloated, more durable battery life
4. With three sets of large, medium and small silicone earplugs of different sizes, fit the ear canal more sound isolation, non-sensory and comfortable wearing
5. Ambient sound mode, you can hear the surrounding environment without taking off the headphones
6. 13mm carbon fiber speaker unit, more balanced tri-frequency
7. As low as 0.038s delay, support unilateral mode, 0 lag, no delay in audio and video
8. ANC active noise reduction + ENC call noise reduction, double noise reduction, double HD
9. Fingerprint contact, single and double-ear use seamless switching, saving sensitivity
10. Passive-active mixed-mode noise reduction technology, using the microphone to pick up the external environmental noise, and send out the reverse acoustic wave and noise offset, noise reduction depth of up to -48dB
11. Active noise reduction technology, adaptive noise filtering, blocking external noise, clear recording of the human voice