technical parameters bluetooth version :3.0 output power:3wx1 frequency response:80hz-18.5khz signal and noise ratio:≥80db built in lithium battery:400 mah input:5.0 v features and function portable bluetooth speaker elegant design rubber oil finish soft coated net clear sound quality support: bluetooth accessories manual usb power supply cable package product weight:195g product size:13x9x5.2cm color box size:13.6x9.2x7.3cm carton size:50x36.5x29.5cm qty/ctn:50pcs n.w/g.w:11.1kgs/12.1kgs