Mobile Pixels has created lightweight ultraportable mobile monitors that make on-the-go work & play, easy & efficient. For Anywhere Work Takes You! Mobile Pixels Wireless Keyboard and Mouse Technical Specs - Keyboard: Number of Keys: 78 Keyboard size: 285mm x 121mm x 16.5mm Weight of Keyboard Keys: 252 + 5g Rated Operating Voltage: 3.7V Rated Operating Current: 51.5mA Battery Capacity: 250mA Wireless Frequency Range:2.4 GHz (2402-2480mHz) Bluetooth technology: 2.4G/BT 5.0/BT 4.0 Wireless Operating Distance: 10 Meters Charging Cable: Standard USB To Micro-USB Mouse: Max acceleration: 14 in./sec Scroll Wheel (Y/N): Yes Tracking System: Optical tracking Built-in battery voltage: 3.7V Rated Operating Current: ?10mA Battery Capacity: 500mAh Wireless Frequency Range: advanced 2.4 GHz wireless connectivity Bluetooth technology: BT 5.0/BT 4.0 Wireless Operating Distance: 0 meters in open area and 5 meters in office Battery type: Li-polymer rechargeable battery