Unit size:
11 x 8 x 8cm (foldable size)   
22 x 8 x 4cm (open size)</ul>
Unit packing: color box package 
Carton size: 40.5 x 33 x 36cm, 60pcs/ctn 
G.W./N.W.: 15.5kg/14.5kg

Features:
Fit for iPod, MP3, MP4 player and mobile phone    
Speaker system: 4 ohms 2W *2     
Frequency response: 80Hz-18kHz   
Signal Cable: 220mm STR cord   
S/N ratio:﹥65dB   
Plug: stereo 3.5mm   
Power supply: DC 6V 4* AAA batteries/AC adapter (not included)/DC 5V USB cable for PC (included)

Certificate: CE, RoHS