ATC New LCD Remote Shock/Vibrate Dog Training Collar -2 Dog Remote training collar with LCD display. 300 meter range. Over 3,000 different identity codes to prevent conflicts with other e-collars. Rheostat dial allows for gradual adjustment in stimulation intensity. Package include: 1 x Remote transmitter 2 x Collar 1 x Test Light 4 x AAA Battereis 2 x 4LR44 6v batteries