Model: X600 - Color: Black - With 1.3" LCD display - Frequency: 433MHz - Transmitter with 100 levels electric shock sound vibration function - Transmitter powered by 1 x 9V 6F22 battery (included) - Power saving function - Receiver with electric shock sound vibration flashing function - Receiver powered by 1 x 3.7V 250mAh lithium battery (built-in) - With USB charging port fully charged LED light always light on - Collar length: 20~50cm (adjustable) - Accessories: - 1 x USB charging cable (75cm) - 1 x 100~240V power adapter (2-flat-pin plug) - 1 x Testing bulb - 4 x metal tips - 1 x Switch silicone stopper - 1 x Charging port silicone stopper