TW1867 Typewriter Keyboard - Easy to connect and switch between devices: upgraded Bluetooth 5.0 provides fast switching among A, B, and C devices, reducing wait time and improving workflow. - Switch lights at will: white LED lighting with adjustable modes controlled by a lever; volume and brightness can be adjusted by twisting the wheels for comfortable work lighting. - Built-in hot-swappable blue switches: classic typewriter style integrated with premium hot-swappable blue switch technology for a tactile, clicky typing experience and easy customization. - Revisit retro style with modern technology: panels are made from aluminum alloy with a wood-grain electroplated finish, matte black pull rods and rollers, and electroplated round key caps, delivering a refined retro look. - Broad compatibility: works with smartphones, tablets, or laptops running Android, Windows 10, iOS, or Mac OS. Can also connect to a desktop PC via USB cable. Lifetime after-sales service is provided. - Portable compact design: a multi-functional typewriter keyboard with a compact footprint. The TW1867 measures 12.8 inches in length and 6.65 inches in width, making it easy to slip into a 13-inch laptop bag for travel. Use scenarios: - Multi-device productivity: switch quickly between a phone, tablet, and computer during work or study without missing a beat. - On-the-go typing: portable enough for travel, meetings, or coffee-shop work, while providing a tactile, retro typing sensation. - Desktop and wired use: connect via USB for reliable wired operation when preferred or required.