Features: High quality for professional use Replacement receiver for the original broken old one Help to repair your mouse or keyboard, and make it work properly Long service life and easy installation Suitable for Unifying Mouse, Keyboard Specification: Applicable Model: for Unifying Mouse [Mx master, M950T, M950, Mx Anywhere2, M905, M705, m720 M525, M515, M510, M505, T620, T400, M345, M325, M310, M310T, M320, M305 (Unifying), M235 (Unifying)], etc. for Unifying Key Board [K400r, K750, K800, K520, K710, K780, K270 (Unifying), K230, K340, K350, N305, K340], etc. for Unifying Keyboard and Mouse Sets [MK365, MK520, MK710, MK270 (Unifying), MK330] Quantity: 1 PCS Package: 1x Wireless USB Receiver