Mini 18-Key 2.4G Wireless Numeric Keypad, Dual-Mode Mini Number Pad with USB Receiver

2.4G, wireless., USB ( BATTERY NOT INCLUDED ) The perfect accessory to complete your workspace.Featuring a full keypad with number lock, the Wireless Numeric Keypad is a great wireless solution for extending your existing keyboard. Specification: 1.Operating Frequency: 2.4G technology 2.Structure Fixed way: Fastening buckle bit 3.Case Material： ABS 4.Power Supply:1* AAA Battery (Package not include) 5.Operating Current: 5mA (MAX) 6.Sleep Current: 0.5mA 7.Effective Distance: Approximately 32.9FT (10M) Accessibility 8.Working Temperature and Humidity: 5-50 celsius 10%-85%RH 25celsius 9.Storage Temperature and Humidity: -20-70 celsius 5%~95% 25 celsius 10.Application: Desktop, Laptop, Tablet 11.Key Mechanical working life: The keycaps life of more than 10 million times Package List: 1 x 2.4G Wireless Numeric Keypad Black 1 x Wireless USB