Product Description Features: Bluetooth Earphone For Running V5.0 2019 new Classic In-ear Stereo Sports i11 touch earphone bluetooth/ wireless headphone Specifications: 1. Chipset: Jieli Touchï¼? 2. Blutooth version: Blutooth V5.0ï¼? 3. Blutooth band: 2.4GHzï¼? 4. Battery: box battery is 350mah, earphone battery is 40mahï¼? 5. Channel mode: 2.0 real stereo; 6. Blutooth distance: 10 metersï¼? 7. Touch function: Supportï¼? 8. Operating voltage range: 3.0V-4.2Vï¼? 9. Speaker: real copper ring 10 / frequency response 20-16HZï¼? 10. Distortion rate: THD
