BAS Waterproof Bluetooth Speaker, Dustproof/Drop Protection/Bluetooth/Supports Micro SD Card/Level 5 Waterproof/ High Efficient 2200MHA Lithium Battery Waterproof IPX5, Dust-proof IP4, Drop Protection, BT Range 30 Meters Bluetooth, Built in MIC, Bluetooth Hands-Free, With Call Voice Instructions Supports Micro SD Card, USB Port, AUX Port, Level 5 Waterproof and Dust-proof Functions Built In Highly Efficient Lithium Polymer Battery 2200MAH, Sound Channel 2.0, Output Power 5W*2 Play Time 6-8 Hours, Player MP3,WMA/WAV/APE and PLAC.