awei Y331 Outdoor TWS Stereo Bluetooth Speaker 1. Bluetooth chip: Actions 2185 2. Bluetooth version: V5.0andEDR 3. Channel system: stereo (two channels) 4. Battery capacity: 2000mAh3.7v 5. Drive unit: 45mm, rated power 5Wx2 6. Speaker power: RMS 5Wx2, impedance: 4 ohms 7. Frequency response range: 90Hz-16KHz 8. Charging time: about 4 hours, talk time: 10 hours 9. Music duration: 8-10 hours 10. Voice prompt: support 11. Supported protocols: A2DPAVRCPHSPHFP 12. Input charging standard: DC5V-1000mA 13. Bluetooth operating frequency: 2.402GHz-2.480GHz 14. Transmission distance: 10M (barrier-free space) 16. Support Bluetooth modeTF card modeAUX mode 17. Support bluetooth device to connect music playback and two-way call function 18. Support TF card APE, FLAC, MP3, WAV, WMV music format playback 19. Support TF card management, USB sound card 20. Built-in noise-cancelling high-definition microphone, one-key answering, support for hands-free calling 21. Fashion design, small size, easy to carry 22. Waterproof grade: IPX6 23. Product size: 184x72x72mm 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.