ir remote control 1,Size: 72 x 34x 6mm (ABS) 2,Max ... : 21 keys 3,Plastic keypad 4,Net weight: 33g ir remote control It is designed with small size, beautiful exterior , Sound ... ,433 MHZ (available for customer appointment) 5,Transmitting distance: ≤1000m (open space)6,Frequency deviation : ± 0.2MHz; 7,Transfer data rate ... feel free to contact with us. 2012 brandnew shenzhen ir remote control