[ For 18V Battery]: Portable Wireless Speaker is compatible Compatible for 18V Li-ion Battery:BAT622, BAT609, BAT618G, BAT609G, BAT618, 2 607 336 170, 2 607 336 092, 2 607 336 091, 2 607 336 040, 2 607 336 208. And built-in low-voltage protection, when the battery voltage drops below 15v, the low-voltage protection system automatically cuts off the circuit to avoid damage to your batteries or other safety issues caused by excessively low battery voltage. [BT Cordless Connectivity and USB Port]: Say goodbye to messy wires and connect your smartphone, tablet, or laptop to our speaker wirelessly. Enjoy crystal-clear sound quality and the freedom to control your playlist from across the room. Our portable speaker offers a convenient USB port. Simply plug in your USB drive, and let the music flow. [Multi-Color LED Modes]: Illuminate your space with seven vibrant LED colors, each representing a lighting mode. Set the ambiance of any room to match your mood or the occasion with customizable lighting options. (long to turn off/on, short to change light mode). [Up to 24H ]: Don't let power interruptions ruin your music mood. Our speaker for boasts a long-lasting battery that ensures you can keep the tunes going all day long, whether you're connected via BT or USB. Up to 24H with 4.0Ah battery. [360° Stereo Sound]--Enables two portable wireless speakers to be connected in . Let's enjoy a full 360° of loud 20W music in the home theatre, at parties, on the beach, in the park or anywhere else imaginable. Colour:Blue Material:plastic Package Contents: 1 x Bluetooth Speaker for Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.