This small dog RX-090 receiver is the perfect choice for dog obedience training. Due to the rugged design, the RX receiver is perfect for any type of training environment. This RX receiver comes in a variety of strap colors, including pink, black, and other options. You can also choose the bare RX receiver if you already have a strap. Replace a lost or chewed up (it happens!) receiver or add to a 1-Dog system to convert to a 2-Dog system!