Includes mini USB charging cable. Can be recharged up to 500 times and has a play time of 2-4 hours. Waterproof. Bluetooth wireless technology. Hands-free function to answer phone calls. Fun coloured changing lights. Floating speaker lets you enjoy music while in the pool. Pool parties are twice the fun with the SUNNYLIFE Floating Summer Sounds. Featuring a waterproof design and fun coloured changing lights.