Item Type: Indoor Tabletop Electronic Scoreboard Model: GA30B Plug Input Voltage: 100-240V Plug Output Voltage: DC 5V Scoreboard Power Supply: DC 5V or 3 x Li ion 18650 batteries(not include) Remote Control Power Supply: 2 x AAA batteries(not include) Score Board Display: 1. Single game time, timing mode countdown, can be edited. If the value is greater than 1 minute, the value is displayed in (minute: second) format. If the value is less than 1 minute, the value is displayed in (second: millisecond) format. 2. Show the number of match sections, from 1 to 5. 3. HOME score and GUEST score display, showing a maximum of 199. 4. Direction of attack arrow display. Package List 1 x Scoreboard 1 x Remote Control 1 x Power Supply Plug 1 x Power Supply Line 1 x Bracket 2 x Hook 2 x Punch Free Hook 6 x Screw 2 x Expansion Screw Indoor use, not waterproof. 1LIGHTWEIGHT AND PORTABLE: Lightweight design for easy transportation. Recommended for indoor use, very practical 2SUITABLE FOR SPORTS: Indoor tabletop electronic scoreboard can be used for basketball, wrestling, volleyball, boxing, etc. 3MULTIPLE MODES: Including period, bonus, and ownership metrics. Features training, exercise and circuit timer modes 411 DIGIT DISPLAY: Yellow, red and green LED displays are 11 digit. The scoreboard has a loud built in speaker 5WITH FITTINGS: Equipped with remote control, bracket, hook, screw, easy for you to install and use, complete accessories guarantees convenient operation