Mini Hamburger Speaker

Features of Mini Hamburger Speaker:
-Small Size, easy to carry
-Can be used in different places, and can carry a hanging line, using imported materials Earthquake Prevention;
-Energy conservation and environmental protection, a built-in high capacity lithium battery, charger can be repeated without replacement batteries;
-Speakers box can scalable or shrink, which could give different acoustics.

Specifications:
-Loudspeaker output: 2W
-Frequency response: 80Hz-18KHz
-Li-ion battery output: 3.6V
-Li-ion battery input: 4.2V+/-0.05V
-Working Temperature: -20oC~+50oC
-Dimensions: diameter: 52mm, height:31mm
-Weight: 50g