Amazon.com : Dog Training Collar Receiver Battery Replacement for Dogtra BP20R - Dogtra 280NCP Platinum Battery (210mAh, 3.6V, NI-MH) : Pet Supplies
COLLIER DRESSAGE ET REPERAGE DOGTRA 2500 T&B
Beeper Dogra RB-1002. High audibility at a great distance
Amazon.com : HQRP Battery Compatible with Dogtra 3500-NCP Super-X, 3502-NCP Super-X, 2502-T&B Remote Controlled Dog Training Collar Receiver : Pet Training Collars : Pet Supplies
Amazon.com: Battery Replacement for DOGTRA 2500B Transmitter, 2500T Transmitter, 2500T&B Transmitter, 2500TX Transmitter, 2502 T&B 1 Mile, 2502B Transmitter, 2502T Transmitter, 2502T&B Transmitter Part NO BP74T : Electronics
T&B Dual 2-Dog | 1.5 Mile DUAL DIAL Training & Beeper E-Collars for Dogs
Amazon.com : HQRP Battery Compatible with Dogtra 3500-NCP Super-X, 3502-NCP Super-X, 2502-T&B Remote Controlled Dog Training Collar Receiver : Pet Training Collars : Pet Supplies
HQRP Battery compatible with Dogtra 3500-NCP Super-X, 3502-NCP Super-X, 2502-T&B Remote Controlled Dog Training Collar Receiver plus Coaster - Newegg.com