1. Output electricity: 18w2. Charging voltage: dc 5v3. Lithium battery: three. 7v / 2200mah * 2pcs4. Working time: 50% volume8~10 hours (song mode);10~15 hours (mic mode)5. Charging time: 3~5 hours6. Product size: a hundred and twenty * 96 * 45mm7. Unit weight: 392g8. Available colorations: green; black9. Running temperature: -10℃~45℃10. Frequency response: 90hz~18khz11. Wi-fi distance: 30-35mstandard packaging:1 *host1 * belt1 *wireless microphone1 * usb charging cable1 *user manualonly the above package deal contents, different merchandise aren’t blanketed. Provider: hey, when you have any questions all through the shopping process, you can touch us and want you a happy shoppingnote: light shooting and distinct displays may purpose the color of the item in the photo to be slightly one-of-a-kind from the real object. The allowable size error is +/- 1-3cm.