1)You can control your players any time and any place,and the function is Play, Pause, Menu,Select,Repeat,Mute,Shuf,Next song, Previous song, Volume"+"or "-" , Fast forward, Fast rewind, Power on or Power off,it have 13 functions. 
2)Convenient, delicate, transmission range: 5M;
3)Electrical current is small, it can be supply power by iPod;
4)Compatible:all models of iPod.

Packing details:
Dimension of item: 36.92*9.16*8.95mm

Weight of item:  29.2g
Dimension of  packing:  210*122*25mm
Weight of unit: 54.9g
Quantity of carton:  150pcs
Dimension of outside packing: 575*420*370
N.W:  8.24kg
G.W: 10.24kg