BEFORE PLACING YOUR ORDER CONTACT US SO WE CAN CONFIRM AVAILABILITY AND OFFER YOU A DISCOUNT CODE. YOU MAY DO THIS VIA CHAT OR EMAIL [email protected] SEND US THE PRODUCT NAME AND WE WILL PROVIDE THE DISCOUNT CODE. WE PREFER CHAT TO GET RESPONSE.Our electronic fencing system creates an effective signal field to deter our dogs from the designated area, which greatly ensures our pets’ safety. The transmitter features multiple dogs support, 0.75 acre signal field range and 100 adjustable levels. Once you start up the system, the receiver will automatically send beep(4 levels) and shock(4 levels) as your dog try to cross the boundary wire. The rechargeable feature, IPX7 waterproof performance and adjustable collar strap provide much convenience during use.