Battery: Built-in lithium battery. Rechargeable via USB<br>Material: ABS &  sponge<br>Weight: About 45g<br>Size: Abut 5.5 x 8 x 5.5cm<br>Charging time: the first charge at least 2 hours<br>Standby time: 6 hours<br>Turn ON/OFF: in sound head with "OFF - ON" button, uncover cavernosum have a switch<br>NOTE:Please be sure to turn off switch on the speaker when chargering.<br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-1-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56d0f69b815a4d14cbd318ed-6-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;"><p style="text-align: center;">