2.4G Wireless 18‑Key Mini Silent Numeric Keypad with USB Receiver Portable for Financial Accounting Laptop PC Desktop Notebook

Specification:1.Operating Frequency: 2.4G technology2.Structure Fixed way: Fastening buckle bit3.Case Material： ABS4.Power Supply:1* AAA Battery (Package not include)5.Operating Current: 5mA (MAX)6.Sleep Current: 0.5mA7.Effective Distance: Approximately 32.9FT (10M) Accessibility8.Working Temperature and Humidity: 5-50 celsius 10%-85%RH 25celsius9.Storage Temperature and Humidity: -20-70 celsius 5%~95% 25 celsius10.Application: Desktop, Laptop, Tablet11.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