Mini Portable Speaker has a Power switch and a Volume adjustment option of Power Supply USB power cord in-build/4 AAA batteries does not included/Universal DC 9V adapter.

Compatible with Computer Mobile MP3 /MP4 player.

Specification:-
• Material:-ABS plastic
• Signal-To-Noise Ratio:-≥70dB
• Input Voltage:-DC9V/MP3(3.5MM)/Line-in(3.5MM)/iPod
• Voltage:-DC9V/AAA battery X 4pcs
• Current:-≤800mA
• Impedance:-4Ω
• Output Power:-2.5W X 2
• Distortion Rate:-≤1.5%
• Frequency Response:-20Hz~20KHz
• Signal-To-Noise Ratio:-≥70dB
• Power Options:-USB power cord /4 AAA batteries /Universal DC 9V adapter
• Color:-White