<p>Feature 1: BATTERY POWERED</p> <p>The wireless laser timer charges for 5 hours and runs for 8 hours. It features a battery percentage reminder design. The switch button is conveniently located on the side of the timer. There is no need to connect a mobile power supply, making it easy to use.</p> <p>Feature 2: TECHNICAL PARAMETERS</p> <p>The effective light distance of the wireless laser timer is more than 8 meters. It features a five-digit display with accuracy to 0.001 seconds.</p> <p>Feature 3: AUTOMATIC RESET WITH SMALL ERROR</p> <p>When triggered, the timer will automatically reset and enter the next round of timing without the need for manual reset. The timing error over one hour is less than 0.001 seconds.</p> <p>Feature 4: WATERPROOF AND PORTABLE</p> <p>The racing timer stopwatch comes in a toolbox packaging, making it waterproof and shockproof. It is compact and portable, ideal for various outdoor activities.</p> <p>Feature 5: WIDELY USED</p> <p>The race clock is designed to time the start and finish at the same location. It is an excellent coaching tool for motorcycle timing, karting lap timing, piling timing, balancing cars, roller skating, pet training, and track and field training competitions.</p> <p>Item Type: Wireless Laser Timer</p> <p>Material: Aluminum, PC, ABS</p> <p>Power Supply: 18650 lithium-ion battery (1500mAh)</p> <p>Machine Charging Input Voltage: DC 5V</p> <p>Power Adapter Input Voltage: 100-240V</p> <p>Effective Laser Distance: Approx. 8 meters / 26.2 feet</p> <p>Package List:</p> <p>1 x Timer</p> <p>1 x Reflector</p> <p>2 x Floor Support</p> <p>1 x Support</p> <p>1 x Charging Cable</p> <p>1 x Power Adapter (random color)</p> <p>1 x Storage BoxNote: Do not look directly at the laser-emitting hole while the device is in operation.</p>Thanks