Features 1、34‑key Bluetooth numeric keypad for Apple computers, laptops. 2、34‑key Bluetooth numeric keypad for Apple computers, laptops. 3、No matter where you go, you can easily put it in any backpack, bag, or purse. 4、Built‑in Polymer Soft Pack Lithium Battery 302323‑110mAh. 5、Support for Windows, for iOS, for Android system. Specification Features: 1. 34-key Bluetooth numeric keypad for Apple computers, laptops. 2. Made of Aluminum Alloy + ABS, durable to use. 3. No matter where you go, you can easily put it in any backpack, bag, or purse. 4. Built-in Polymer Soft Pack Lithium Battery 302323-110mAh. 5. Support for Windows, for iOS, for Android system. Specification: Material: Aluminum Alloy + ABS Color: Black Support System:For Windows, for iOS, for Android Number of keys: 34 keys Wireless/Bluetooth Solution: American Broadcom (BCM20730) Bluetooth Version: Bluetooth 3.0 Keyboard Life: (Keystrokes) 5 million times Response Speed: 5 milliseconds Bluetooth Transmission Distance: 10 meters Operating Current/Voltage: 2mA / 3.7V Built-in Lithium Battery: Yes Battery Type & Capacity : Polymer 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 Package List