The Soundcore Select 2 is the perfect crystal-clear portable Bluetooth speaker. Using our exclusive partycast technology, you can link over 100 partycast speakers together for synchronized music and lights. A 20 hour playtime paired with IPX7 waterproof technology makes it the perfect outdoor speaker, and you can customize the sound and lights using the app to get the perfect vibe. Detachable strap is included so you don’t drop it during the more rugged adventures.Anker Soundcore Select 2 Portable Waterproof Bluetooth Speaker - 16W - 20-Hour Playtime - IPX7 - Black - A3125Z11 Wirelessly link more than 100  speakers for synchronized music and lights using our PartyCast technology.BassUp™ 2.0 - New DSP chip advantages stronger computing power, higher dynamic gain adjustment, bass divingEnjoy 20  hours of continuous playtime from a single charge. Charge your devices using the built-in USB portIPX7 waterproof for outdoor eventsUSB Type-C 2A - Convenient, compatible and fast recharging makes music on the go easy.Customize Select 2's sound by choosing from preset EQ modes or create your own.A compact build and a detachable hand strap let you take your Select 2 Bluetooth speaker on all kinds of adventures.Bluetooth 5.0 - Strong and stable wireless connectivity ensures a rock-solid link with your phone.Boosted Bass via Dual Passive Radiators16W of power Package Contents: Select 2 SpeakerUSB-C CableDetachable Strap