1.3" LCD display controller - Multi-levels of electronic-shock impulse for different conditions - Can control 3 dogs at most - To encode different dogs just change to different channels - Control distance up to 1000m - Safe for dogs - Waterproof soft collar is comfortable to wear (length adjustable) - 3 memory groups for each channel - Frequency: 433.92MHz - Remote controller powered by 1 x 6F22 9V battery (included) - Receiver powered by 2 x AAA batteries (included) - Package included: - 1 x Colar - 1 x Remote controller - 1 x Antenna - 4 x Shock head - 1 x Test light - 1 x English manual