JBL Charge 3 Waterproof Portable Bluetooth Speaker - Black - JBLCHARGE3BLKAMFrom JBL, their Charge 3 Waterproof Portable Bluetooth Speaker. This model comes in black. Model: JBLCHARGE3BLKAM Features: Bluetooth Wirelessly connect up to 3 smartphones or tablets to the speaker and take turns playing powerful stereo sound. Battery type : Lithium ion Polymer (22. 2Wh)2) 20 hours of playtime(varies by volume level and content) IPX7 Waterproof Take crystal clear calls from your speaker with the touch of a button thanks to the noise