Bluetooth,Waterproof Indoor/ Outdoor Wireless Bluetooth Speakers, Built-In Microphone (Black/Orange) Rechargeable battery. Outstanding Acoustical Sound By Xtreme"00" Waterproof Bluetooth Speakers for indoor or outdoor use. Wireless or USB connection universally compatible with Android and I phones, smartphones, tablets,, I pods, MP3, MP4, and other Bluetooth enabled digital players,10 to 12 hour battery life, Rechargeable with in one hour, Stereo Sound Quality, Use indoors or outdoors or even in the shower. Integrated Bluetooth wireless technology, High definition Bluetooth audio wireless connectivity with seamless streaming and 10-12 hours of battery play time, Built in Mic 33-foot effective wireless range, Great for showers, Bathroom,Pool, Beach Boat, Car, and Outdoor Volume button & quick press for new song Hook for easy carrying on a bag or backpack, Lightweight