A futuristic and technical marvel. The bite indicators are equipped with 2.5 mm connection for mechanical bite indicators, 6-step sensitivity adjustment, 7-step volume control + silent, 6 different LED colours, 2 snag bars (can be screwed in optimally), night light function. Range: min. 150 m. Requires 2 x AAA batteries each (please order separately). The receiver has a flashlight function and a bite indicator for sound, light and vibration.