MVG1001 Features: * Train up to 2 dogs from the same transmitter (purchase extra receivers separately). * Range up to 1000 yards (on open air). * Free combination among tone, vibration and stimulation. * 3 group memories for each dog. * Big LCD digital display for instruction. * 2 x AAA alkaline battery for the receiver. * Low power consumption for long life battery. * Advanced high-tech microchip and RF modules. * Patented design * 2 x Dog collars * 1 x Test light * 2 x Long electric antenna * 2 x Short electric antenna * 1 x User manual * Tone * Vibration * Stimulation. Includes: * 9V alkaline battery replaceable for transmitter(included). Specifications: * 99 levels for each model. * Frequency: 433.92MHz. * Receiver: 2*AAA 1.5V battery * Transmitter: 1* 9V battery