2 in 1 Langking Upgraded Version Numeric Keyboard & mouse Combos Wireless receiver can match two numeric keypads under the same brand at the same time. Need to master the keyboard keypad switch，If the battery is less than 1.1V,the LED indicator light alerts.No Power Button Needed,Use 1*AAA Battery,(Battery Not Include) ★Numeric key mode, "Enter" shows the results of calculation, "=" can be used for simple function calculation. ★Function key mode, "Save" shortcut keys can save the editing data in time, you can enter these two "bracket" keys to facilitate mathematical calculation. Specification Material: ABS Effective Range: 33 Feet Operation Frequency: 2.4GHz technology Size: 5.6 x 0.9 x 3.3 inches Weight: 3.7oz Key Operation Force :48g Key Resilience:>15g Working Current: Working voltage:DC 1.5V Langking Numeric keyboard combos Advantage Power-Save Funtion: 1.When you are traveling with this mouse ,the LED of the mouse will be switched off automatically for the purpose of power-save .but the pre-condition is that the receiver is disconnected with your notebook . 2.When your mouse no any click or scroll or moving,the mouse will come to sleep state for economize after about 8 seconds,for the wake up,you can scroll the wheel or click any botton for this . Package List: 1 x 2.4G Wireless Numeric Keypad 1 x Wireless USB 1 x Mouse 1 x User Manual Langking Wireless Numeric Keypad is a perfect accessory to complete your workspace. Just need to insert the receiver to the device's USB interface, perfectly creating a dedicated space for numeric data entry.
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