Product Model: V30L 10D02BAT Material: Aluminum Alloy Remote Control Power Supply: 2 x AAA Battery (not included) Product Power Supply Method: 1 x CLY554268 2000mAh Lithium Ion Battery (built in battery) Power Adapter Input Voltage: 100-240V Power Adapter Output Voltage: DC 5V 2A Display Colors: Red, Orange, Green Control Method: Remote Control Control Distance: Approx. 10-15 meter / 32.8-49.2ft Product Charging Method: DC 5V 2A Charging Time: 2-3H Working Hours: 7-8H Power Consumption: 0.83W Current: 223mA 50mA Package List 1 x Scoreboard 1 x Remote Control 1 x Power Adapter 1 x Charging Cable 4 x Screws 4 x Wall Plugs The normal working power supply of the product is 5V, the voltage is too low, the work is not normal, and the voltage is too high, the circuit will be damaged. 110 DIGIT LED SCREEN: The electronic scoreboard adopts 10 digits LED display screen with red, orange, and green light colors, with a built in speaker. 2WIDE APPLICATION: This scoreboard is used for football, basketball, wrestling, volleyball, boxing, badminton, table tennis, etc., for daily practice or game. 3ACCURATE SCORING: The electronic scoreboard adopts a large area circuit board with low failure rate, ensuring accurate and reliable scoring results. 4REMOTE CONTROL: This LED scoreboard supports remote control, with a control distance of 1015 meters, accurate and sensitive, suitable for indoor use. 5BATTERY POWERED: This electronic scoreboard is powered by a 2000mA lithium ion battery (included), ensuring longer endurance, easy to use at any time.