ALZO Wireless Radio Shutter Release 300 ft range for Nikon D80 D70s N2 For Nikon D80, 70S and N2 300ft range with penetration through walls (walls will reduce range) Supports Partial Shutter/AF & AE, Continuous Drive and BULB mode Selection of 1 of 16 channels to reduce possible RF interference BATTERIES INCLUDED (life of about 20,000 actions)