Overview: The Dogtra Element 300M has all the basic components needed for successful behavior management of mild mannered dogs that do not require a high level of stimulation. It features a 1/2-mile range, rechargeable batteries, and a fully waterproof Receiver and Transmitter. Included Package Contents: Transmitter Receiver (5/8″contact points, which are standard) Please add comments if you’d like a different size. Battery charger and splitter cable Owner’s manual Lanyard Features: Precise stimulation level (0-100) Reduced receiver/collar designed for smaller dogs 1/2 mile range ‘Nick’, ‘Constant’ and non-stimulating pager Rechargeable, user-replaceable Ni-MH batteries Fully waterproof collar/receiver and transmitter LED battery life indicator Available Parts & Accessories for Purchase: Transmitter Battery – BP12RT Receiver Battery – BP20R Antenna – 2” Contact Points – ½”, 5/8”, ¾”, 1” Belt Clip – #4 (Metal) Lanyard – Black, Orange Strap – ¾ x 28”, ¾ x 32” (Black, Orange, Green, Blue, Yellow) Charger – SBC12V300/5.5 Splitter – 5-5 Euro Voltage Adapter Rubber Caps: Transmitter: T13 Receiver: T11 Other Details Warranty – 2-Year Limited Lifetime Warranty Power – Low to Med Range – 1/2 Mile Batteries – Ni-MH LCD Screen – No Carrying Case – No Expandable – No, available in 2-dog unit (302M) Pager Mode (Vibration) – Yes