Up to 13 hours battery lifePower through both your party and the after-party with up to 13 hours from the lithium-ion battery.Bluetooth 5.3Simple, fast and flexible: use Bluetooth to wirelessly stream audio from other devices such as your smartphone or tablet.Duo Mode (TWS)Duo Mode takes your party to the next level! Connect 2 units of the same model together wirelessly at the touch of a button to double the party-power. Together the speakers share the same Bluetooth audio source and operate as left and right channels (True Wireless Stereo).Designed to go wherever you doThe XParty Sing is certified IPX4 (Splashproof) and is resistant to water splashes from any angle. Perfect for the beach, by the pool or in light rain.