? Ultra-PORTABLE DESIGN ?- Weight only 195 grams, this small speaker allows you to take it anywhere. Plus, the durable waterproof fabric material and rugged rubber housing are ready for all outdoor adventurers. ? LONG BATTERY LIFE ?- Built-in rechargeable battery supports up to 20 hours of playtime at medium volume under a full charge. This portable speaker can hang with you all day and night. And it can be fully charged in 2.5 hours via Type-C cable. ? STEREO PAIRING for MORE IMMERSIVE MUSIC ?- With true wireless pairing function, you can connect two speakers via Bluetooth to experience synchronized setero sound. Advanced bluetooth 5.0 technology to provide faster and more stable conection. ? POWERFUL SOUND WITHOUT DISTORTION ?- Although COMISO C16 bluetooth speaker has a ultra-compact size, it can provide you with crisp and clean sound without distortion. Additionally has a microphone installed, so you can make a high-quality phone call with perfect sound by clicking once the play button. ? IP67 WATERPROOF and DUSTPROOF ?- COMISO C16 Waterproof bluetooth speaker is not only IPX7 waterproof, but also dustproof. Can be submerged underwater to 1 meter for 30 minutes. Surprisingly it can also float on water. To be used as the perfect shower speaker, beach speaker, outdoor speaker.