Quick Thoughts: Xtrfy M4 Wireless (Xtrfy get wireless right + customization) - YouTube
Xtrfy - A quick and easy way to check the battery status on the M4 Wireless: Press and hold the side buttons + left click. Updated manual: https://bit.ly/m4-wireless-qsg A video covering all
Xtrfy M4 Wireless Mouse Review
Xtrfy M4 Wireless Gaming Mouse - White - Newegg.com
Xtrfy M4 Wireless RGB Gaming Mouse - Black - us.MaxGaming.com