VELATEMOR Numeric Keypad - Wireless 34-key Rechargeable Battery

Specification: Material: Aluminum Alloy + ABS Color: Black Support System: , , Number of keys: 34 keys Wireless/ Solution: (BCM20730) Version: 3.0 Keyboard Life: (Keystrokes) 5 million times Response Speed: 5 milliseconds Distance: 10 meters Operating Current/Voltage: 2mA / 3.7V Built-in Lithium Battery: Yes Battery Type & Capacity : Soft Pack Lithium Battery 302323-110mAh Charging Time: 2 hours Use Time: 50 hours Standby time: >2 months Size: 145 * 115 * 10 mm/ 5.7 * 4.5 * 0.4 in Weight: 140 g Package list: 1 * Keypad 1 * USB Cable 1 * English Manual