SoundLogic XT Extra Large Rechargeable Wireless Bluetooth Pill Capsule Speaker, Red Compatible with Bluetooth enabled devices such as smartphones, tablets, etc. Use a 3.5mm aux cable (included) to play music from smartphones, tablets, MP3 players, iPod, computers, netbooks, laptops, etc. Built-in 3.7V rechargeable Li-ion battery (Input: DC 5V / 0.5A) Connect wirelessly via Bluetooth V2.1 technology up to 33 feet away Speaker Output: Two 3-Watt Speakers and Two Subwoofers