SILENT MOUSE SWITCHES: The W190 is designed with silent switches to guarantee continuous operation in a home or office setting. Increase your output without disturbing other people! Reduce the "click" noise as much as possible while maintaining the right level of feedback. DUAL MODE STABILITY Bluetooth + 2.4 GHz: Both Bluetooth and 2.4GHz wireless are supported, and it's made to be portable! You can switch your input on the fly and connect to two devices simultaneously! Both ambidextrous and ergonomic: Its completely ambidextrous and ergonomic design makes it comfortable to use with both the left and right hands! Both right-handed and left-handed users will find it ideal.