colour :Jerry 6904 true three-dimensional gold frame black,Jerry 6904 true three-dimensional gold frame white,Jerry 6904 true three-dimensional silver frame white,Jerry 6904 is really three-dimensional, purple frame white,Jerry 6904 is really three-dimensional, red frame white,Jerry 6919 fake three-dimensional gold frame black,Jerry 6919 fake three-dimensional gold frame white,Jerry 6919 fake three-dimensional silver frame white,Jerry 6919 fake three-dimensional purple frame white,Jerry 6919 fake three-dimensional red frame white,Transmission range: 10 metersFunction: battery display, voice control, call function, support music, multi-point connectionBluetooth protocol: 4.1Channel: StereoHow to use : EarbudsFeature support:1. Bluetooth 4.1 stereo subwoofer Bluetooth headset; 2. Volume adjustment; 3. Up and down song selection; 3. Voice prompt; 4. Caller number broadcast; 5. Point-to-point connection; 6. IOS system power display; 7. Call answer/reject Connect; 8. Last number replay; 9 one drag two; 10, 3D surround bass