Introduction You are looking on a Ultra Long Range universal infrared remote control RM-4D for digital cameras. With this mini infrared transmitter, you can control more than 40 digital cameras and with larger operation range, 100% compatible with popular DSLR such as Nikon D3000, D5000, D90, D60, D80, D40(x); Pentax KX, K7, KM, K20D, K200D, etc. Also suitable for some consumer digital camera such as Pentax Optio A30, T30, S10. You can control your digital camera cordlessly, that's really useful for long time exposure photography (Bulb mode support) and self-photography. Items will be sent in 1-2 days from Hampshire,UK as the payment received. Performance Comparison Signal Coverage Operation Distance The signal coverage angle for RM-4D is 80 degree, while other remote controls are mostly from 30 to 60 degree. *Due to the sensitivity difference of the camera receivers, the operation distance may vary between different cameras. Advantages of RM-4D 4 in 1 (supports Canon, Nikon, Pentax, Samung). Bulb mode support Ultra Long operating distance (20m for Nikon, 15m for Pentax). Lower price, better performance. Comes with a Heavy Duty CR2025 battery Camera Compatibility Chart Nikon Digital   D90 D3000/D5000   D60 D40X D40 D80 D70(s) Film F75 F65 Pronea S       Pentax Digital K-7 K-X/K-M/K2000 K20D/K10D K200D K100D/K110D *istDS(2) *istDL(2) Optio A40 Optio A30 Optio S12/S10 Optio S6/S60 Optio S5z/S5n/S50 Optio S/S4i/S40   Film *ist MZ-6         Samsung Digital GX-20 GX-10 GX-1S GX-1L   Specification Transmission type Infrared Working distance Nikon: 20M Pentax/Samsung: 15M Dimensions 86mm x 33mm x 10mm Net weight 20g Battery type CR2025x1 Battery life More than 6000 times of launch.   Warranty: This product comes with 6 month warranty.   More Images