Three types of the series as below: 

SM-503CL (5D Wireless Laser)

Wireless 27M RF laser mouse;

5 Buttons wireless optical mouse with charging station, 1600dpi, ABS material, Blister packing with color inner-lay card, USB output.

SM-503CG (2.4G Wireless)

5 Buttons wireless optical mouse with charging station, 800dpi, ABS material, Blister packing with color inner-lay card,  USB output;  

Mouse working distance:  6-10 Meters; 48 RF channels and 16 bits IDS.

SM-503C (5D Wireless Rechargeable)    

Wireless 27M RF optical mouse

5 Buttons wireless optical mouse with charging station, 800dpi, ABS material, Blister packing with color inner-lay card, USB output.

Product Size:   Mouse Size:  116 x 62.8 x 39 mm;      Reciever size: 81x70x44.4mm.

Color:  Blue/ Black,  or Silver/Black.