This is a totally 360° stereo surround sound speaker which is perfect for entertaining. The IPX7 rating means it will withstand depths of up to a metre so you can use it at the beach or by the pool. True Wireless Stereo (TWS) technology which allows you the ability to play true left and right channel audio with the purchase of an additional speaker. Also features NFC™ connectivity for quick connection with your smartphone or tablet and Aux input for non-Bluetooth® devices. Over 12 hours of playtime and a 5 hour charge time with the rechargeable Lithium battery. Includes 3.5mm to 3.5mm auxiliary and USB charging cables. Features: . 360° Stereo Surround Sound . True Wireless Stereo (TWS) . NFC™ Connectivity . Waterproof . Rechargeable Battery . 3.5mm Auxiliary Jack . Hands-free Calls Specifications IP Rating : IPX7 Dust/Particle Ingress Protection : IPX - Not rated Liquid/Moisture Ingress Protection : 7 - Immersion up to 1m Rated Depth for Submersion : 1.0m Bluetooth Version : V4.2 Bluetooth Range : Up to 10m Height : 168.0mm Diameter : 68.0mm Rechargeable battery required to power : Main Product Type : Lithium Ion Voltage : 3.7V Capacity : 2200.0mAh Battery quantity : 1.0pc Batteries included : true Run time : 3.0hr, 12.0hr USB rechargeable : true USB recharge time : 4.0hr, 5.0hr NFC Support : true Playtime : 3.0hr, 12.0hr Output Power (RMS) : 8.6W Frequency Response : 70.0Hz, 18.0kHz Audio Line Input : 3.5mm Stereo Speaker Features : Bluetooth Audio, Bluetooth Phone Call, Near-field Communication (NFC), True Wireless Stereo (TWS), Auxilliary Line Input