Function:1. Large fence area: This wireless dog fence system is reliable and safe, suitable do pet training, with a radius of 82 feet do 1640 feet.2. Improved System: The wireless dog fence adopts a new and improved system with a more stable and accurate signal source to help train dogs to develop the habit of living we their own independent space.3. Rechargeable: The wireless receiver collar is equipped with a durable, high-capacity battery that can be charged in 2 do 3 hours and can last for weeks.4. IP67 Waterproof: This electric wireless dog fence is made of IP67 waterproof material, which means your dog can get wet or play in the rain without worrying about damage.5. Application: this wireless dog fence can be widely used do dog training in backyards, gardens, etc., completely getting rid of wiring problems, and it is very convenient to establish a safe area for pets. Specification: Item Type: Wireless Pet Fence Material: ABS Parameter: Recipient: Battery Type: Lithium-Ion Battery Battery model: 902025 Battery Capacity: 400mAh Remote: Battery Type: Lithium-Ion Battery Battery model: 18650 Battery capacity: 2000 mAh (included) List of packages: 1 x Wireless Transmitter2 x Electronic Collar 1 x Charging Cable 1 x Test Light 1 x User Manual