Specification: Item Type: Bluetooth Speaker_x000D_Material: ABS_x000D_Connection Range: Approx. 10m/32.8ft_x000D_Working Time: 5H_x000D_Frequency Range: 280Hz-16KHz_x000D_S/N95dB_x000D_Charging Time: 2H_x000D_Built In Polymer Lithium Battery: 500mAh Features: 1COLORS CAN BE CHANGED: When the speaker is turned on, the lights change a color every 5 seconds, and the rich colors bring the ultimate enjoyment. 22 SPEAKERS TURNED ON AT THE SAME TIME: The speakers will automatically be connected in series, and the song that matches both speakers will be played in the phone at the same time. 3RICHER BASS: The extended for Bxs system of this portable bluetooth speaker brings a fuller, richer bass response and clear stereo sound, practical. 4PORTABLE: The Bluetooth speaker is small and portable, with a built in 500mAh polymer lithium battery, you can enjoy music anytime, anywhere. 5HIGH QUALITY MATERIAL: The Bluetooth speaker is made of high quality ABS material, which is sturdy and durable to ensure long term use. PackageList: 1 x Speaker 1 x USB Cable 1 x Hanging Chain