1.EQ Mode.Enusic soundcup can change the play mode,outdoor or indoor,so that you can enjoy the music anywhere.
2.Playtime up to 8 Hours Using.Enusic soundcup use 4000mah battery,you can enjoy music up to 8 hours.
3.Looks expensive but cheap to buy .Soundcup is Not Only looks like a speaker from a big brand that you should spend $200 to buy,But Also offer xBass Dual 10 Drivers and waterproof IPX4,etc.
4.Bluetooth Version 4.1.Newest bluetooth version.Instantly connect your phone or tablet from up to 33 feet away. Speaker automatically reconnects to the last device used. Compact size lets you easily move it around from room to room.
Here is the Instruction Manual (← click here) for your reference.