Esky Shock Control Dog Training Collar with Rechargeable LED Backlight Remote JOIN THE MILLIONS OF TRUSTED ESKY USERS AROUND THE WORLD HIGH-QUALITY AND COMFORT: The remote is made of durable material for a more comfortable fit and feel. With advanced RF technology, the collar is effective within a 300m range 100 ADJUSTABLE LEVELS: Vibration and stock can be adjusted 100 various intensity levels. RECHARGEABLE COLLAR & REMOTE: both collar and remote are rechargeable, no batteries required. Comes with 2 collar receivers. RELIABLE AND FRIENDLY CUSTOMER SERVICE: ready to respond within a 24 hour time frame and Lifetime Support.