Petrainer Replacement Remote Transmitter for 330 Yards Remote Training E-Collar Pet998DBB, Rechargeable and Waterproof Dog Training Collar with Newly Upgraded-Blue Backlight Screen This accessory is only compatible with the PET998DBB1/2-A. NOTE: Before you place an order, please be sure to ask customer service for model you want to match. Accessory Only, Can NOT Be Used Alone. Advanced RF 434Mhz Technology boosts range up to 330 yards Built-in high capacity lithium rechargeable batteries (500 mAh for transmitter) Convenient, easy-to-read Backlight LCD screen that shows the stimulation level 4 modes: static shock, vibration, beep and light