Ideal for training any breed of sporting dog. Operates up to 3 collars simultaneously and independently. Choice of continuous or momentary correction and tone, no tone or tone with 1 second correction delay. Long life NiMH battery pack snaps in and out for replacement ore recharging. 15 correction levels ranging from ultra low to high. Instant on/off switch saves on batteries, protects against accidental activation. Waterproof. No Antenna. Collar also operates on NiMH batteries that provide over 40 hours of use on a single charge. 1/2 mile range. Waterproof control unit. Includes: transmitter with rechargeable battery pack, collar with charger, lanyard, test light, sporting dog training video and hard sided carrying case.