Model No.:SM-221b
Product Origin:China
Brand Name:OEM
Price Terms:FOB Shenzhen
Payment Terms:30% T/T in advance
Certification:CE, FCC, RoHS
Description:1) 3 buttons 2) PS/2 3) 800dpi resolution 4) All kinds of injection or transparent colors available 5) USB and UP combo ports available 6) With colorful retractable cable 7) Excellent internet performance 8) With zoom in and zoom out functions 9) Can work on any surface, except glass 10) Convenient for laptop users Packing: Color box / gift box / white box