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

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The product arrived in good condition, in question the packaging suffered some mistreatment but did not damage the product internally. Looks very good and functional. The seller is recommended.
Good product for a fair price!
Good product and shipping as indicated. Thanks!