Punk Round Keycap More Comfortable Feel: Adopting improved film technology, the sound is light and quiet, with a retro typewriter style. The high key position design brings a realistic mechanical feel, making it comfortable to use Mixed Color Keycap High Beauty Design: High-quality ABS material keycaps have a comfortable and delicate touch, keeping them fresh at all times Signal Enhancement 10m Bluetooth Transmission: Advanced Bluetooth 5.0 technology, no lag at a distance of 10 meters; Easily meet the needs of different scenarios Quick Multimedia Button with One Touch Access: FN+ multimedia composite keys for playback/pause, and volume adjustment wait for shortcut operations Specifications: Interface: USB Mouse Connection: 2.4G Wireless + Bluetooth 5.0? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? Lighting: No light Material: ABS Number of keys: keyboard 84 / mouse 4 Mouse Size: 100 x 59 x 40mm Keyboard size: 330 x 155 x 33mm Mouse Battery: 1 x AA battery (not included) Keyboard Batteries: 2 x AAA batteries (Included)