This 300m rechargeable remote control trainer pet998drb is an upgraded version of 998dr. Blue backlight and clear blue button make it more convenient to use in dark light or at night. 100 electric shock and vibration training modes to adapt to dogs of different sizes. Both the transmitter and receiver have built-in high-capacity rechargeable polymer batteries, which greatly reduces the convenience and experience of the product. Pet998drb is very effective for training dogs to obey their owners’ instructions and develop good living habits. It is a simple, practical and cost-effective pet training product.[main features]1. 300m wireless remote control distance, more than 2 dogs can be trained at the same time (another receiver must be purchased);2. Two training modes: electric shock and vibration, and the intensity value is stepless adjusted from 0 to 100;3. Blue keys and blue backlit LCD display screen are convenient for clear reading of operation instructions in dark environment;4.