Welcome to our store! 1. 22-key Bluetooth numeric keypad for OS X computers and laptops. 2. Made of ABS, it's lightweight and durable for use. 3. Easily fits into any backpack, bag, or purse, no matter where you go. 4. Long lifespan, capable of over 5 million keystrokes. 5. Supports Windows / iOS / Android systems. Features: 1. 22-key Bluetooth numeric keypad for OS X computers and laptops. 2. Made of ABS, it's lightweight and durable for use. 3. Easily fits into any backpack, bag, or purse, no matter where you go. 4. Long lifespan, capable of over 5 million keystrokes. 5. Supports Windows / iOS / Android systems. Specification: Material: ABS Color: Black Model: BT22 Support System: For Windows/ iOS/ Android Number of Keys: 22 keys Wireless/Bluetooth Solution Support: American Broadcom (BCM20730) Keyboard Life: (Keystrokes) 5 million times Response Speed: 5 milliseconds Bluetooth Transmission Distance: 10 meters Operating Current/Voltage: 0.25mA / 3V Built-in Lithium Battery: No Battery Type and Capacity: 2 * AAA (not included) Size: Approx. 135 * 85 * 20 mm / 5.3 * 3.3 * 0.8 inches Weight: 88 g Package List: 1 * Keypad 1 * English Manual Guaranteed Satisfaction: Customer satisfaction is our top priority. If you encounter any issues with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.