26 Watt Bluetooth Vibration Speaker with Built-in Mic, Battery, NFC, Touch Control, 360 Degree Resonance 26W of Power through it's Neodymium Vibration Driver for a powerful sound NFC (Near Field Communication) for quick pairing and un-pairing with supported devices Touch control allows you to adjust audio volume of the speaker, and remotely Play / Pause / Change song track through Bluetooth Built-in 1400mAh Battery for 3-4 hours of cordless playback Bluetooth 4.0 for wireless connection, 3.5mm Audio jack input for wired connection