Edifier Z2 Plus Waterproof Touch Wireless Bluetooth Earphnoe1. Dual MIC noise reduction, clear sound quality; anti-fingerprint, anti-scratch2. Bluetooth 5. 2 chip, low power consumption, low latency, continuous connection, energy saving and power saving3. Waterproof and sweatproof, comfortable to wear, connect in seconds after opening the cover, fingerprint touch, audio and video synchronization, widely compatible4. Lightweight semi-in-ear design, comfortable and stable to wear5. Fingerprint touch, take it out and connect automatically6. The left and right earphones can be connected to Bluetooth separately. After the connection, the earphones can be automatically paired each time they are taken out. 7. Waterproof grade: IPX58. Charging time: about 1. 5 hours9. The charging box provides charging times for the headset: 3 times10. Frequency response range: 20-20000Hz11. How to use: earplugs12. Audio decoding: LHDC, SBC, AAC13. Bluetooth protocol: A2DP, AVRCP, HFP14. Transmission range: 10 meters15. Battery capacity: earphone: about 40mah, battery compartment: about 400mah16. Power mode: USB charging built-in lithium battery17. Input power: 5w18. Input voltage: 5v19. Input current: earphone: 0. 2A, battery compartment: 1A20. Function: call function, support music