High-end silent switches with 2.4GHz wireless connectivity and Bluetooth 54 grams Design Lightweight Integrated Superior Grip Completely ambidextrous (supporting both the left and right hands) and portable, on-the-go SWITCHES FOR SILENT MOUSES: Silent switches are incorporated into the W190 to guarantee continuous use 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! Ideal for users who are left-handed, as