Optional accessories (sold separately) 3.5mm male-to-male stereo audio cable (if you want to connect to a non-Bluetooth device). 3.35 in. width X 6.5 in height X 3.35 in. depth means this portable speaker can fit into any backpack. 0.47 kg weight is easy to carry. 20 W sound capability is ideal for small gatherings of up to 10 people. Bluetooth 5.0 compatible, so you can pair it with your Bluetooth enabled devices. Rechargeable lithium-ion battery provides up to 24 hours of continuous playback, so you can play your music day and night. Splashproof water resistance means you don’t have to worry about getting it a little wet. Product includes Bluetooth speaker, USB charging cable and carrying strap.