Remote Dog Training Collar 330 yards Rechargeable LCD Backlight FCC with Beep, Vibration and E-shock 1 Year Free Replacement Warranty Advanced RF 434Mhz Technology, works within 330 yards,enough for you and your dog 4 modes and you can choose a proper level from 1-100 Adjustable high quality TPU materials, fits most medium large dogs Quick and straightforward pairing process.