Model: 998DL2 - Color: Black - Plastic material housing - 0.9" LCD display shows the vibration and static levels - 100 levels of vibration and 100 levels of static - Remote control range: 300 meters - Frequency: 433.825MHz - Features: Alarm / vibration / Static shock / Signal LED - Water resistant receiver - Adjustable straps for ideal fit and best comfort - Built-in 3.7V 550mAh battery in remote control - Built-in 3.7V 500mAh battery in receivers - Charged by USB port - Package includes: - 2 x Receiver - 1 x Remote control - 2 x Receiver collar (40cm) - 1 x USB Power adapter (AC 100~240V/2-flat-pin plug) - 1 x USB cable (50cm) - 8 x metal tips - 2 x Testing lamps - 1 x English user manual