Description: 2.4G: 2.4G wireless connection, 10m transmission distance, no driver required, plug and play. 18 Keys: 18 individual keys, compact key layout, convenient to use. Retro Design: Retro round chocolate key Caps, frosted texture, streamline shape, comfortable feel. Portable: Small size, saving space, easy to carry and use. Applications: Suitable for laptop user, cashier desk, bank, financial accounting, stock exchange, etc. Specification: Model: x910 Material: ABS material Size: 90x135x25mm/3.54inch x 5.31inch x 0.98inch Weight: 105g±5g Connection method: 2.4G wireless connection Connection distance: 10M Number of keys: 18 keys Power supply: 1 x AAA battery (included) Support system: for Windows XP/ win7/ win8/ win10 Package Includes: 1 Piece Keyboard 1 Piece USB Receiver 1 Piece Battery Note: Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!