A new e-collar from Dogtra is the very affordable 2300 NCP Advance for mild mannered or stubborn dogs. The 2300 NCP features "nick" and "constant" stimulation with 127 power settings.
Also included is a pager option for communicating by non-stimulating vibration with any dog. Range is 3„4-mile. Transmitter and receiver batteries are the Lithium Polymer type that can be charged in two hours. An LED screen on the transmitter shows stimulation levels and indicates remaining battery life.
Contact: Dogtra; (888) 811-9111; www.dogtra.com