New product released on 2025/12/3. Brand new, unused, unopened item. No comment, immediate purchase is OK. Free shipping. Basically, we will ship on the same day. Thank you very much. Product Description The most compact trackball mouse in ELECOM history "bitra", perfect for carrying, now supports multi-connection White model added and re-released! Compact but fully functional This is the silent mobile trackball "bitra" with thumb operation. Equipped with a switch to switch between Bluetooth(R) connection and wireless 2.4GHz connection, Allows smooth operation of two devices. You can work without stress in multiple environments such as home and office. The small design fits in the palm of your hand and comes with a storage pouch, making it convenient to carry. Model number M-MT1MRSWH ■ This is the silent mobile trackball "bitra". ■ The button layout is similar to a regular mouse, making it easy to use with the thumb operation type. ■ Equipped with a switch on the top of the main unit to switch between Bluetooth(R) connection and wireless 2.4GHz connection, allowing smooth operation of two devices. You can work without stress in multiple environments such as home and office. ■ If your computer supports Bluetooth Low Energy, you can use it smartly without connecting a wireless receiver. Convenient for use with computers and tablets with few USB ports. ■ The silent switch eliminates the clicking sound of the mouse, so you can use it even in places where noise is a concern. ■ To achieve a natural feel that fits in the palm of your hand, the scroll wheel is tilted 16 degrees to match the angle of the trackball body, allowing for smoother wheel rotation. ■ Equipped with "forward" and "back" buttons to improve the efficiency of web page browsing. ■ Button functions can be changed using the "ELECOM Mouse Assistant" which can be downloaded for free. ■ Comes with a dedicated storage pouch made of shock-absorbing material. You can also store spare batteries, so you can be prepared for sudden battery drain when you are on the go. Connection type...Wireless (Bluetooth) Power supply...Rechargeable Other...Silent, Multi-pairing