Right now, the Razer Anzu Smart Glasses are available for $24 at Woot (opens in new tab). This is down from its regular price of $199 — that is a huge 88% discount on this product. Do note, only the regular/small size is available at the moment. The glasses come with interchangeable lenses, a touch interface, hands-free calling and bluetooth speakers. In our review of the Razer Anzu Smart Glasses we thought the blue-filtering lens was an excellent addition. Keep in mind, we reviewed these as a $199 gadget and not the current $24 which changes things a bit. For $24 they are a bang for your buck as they pack in useful features and can be used both indoors and outdoors. The smart glasses come with two lenses — one blue-light filtering lens for indoor screen use and one tinted polarized sunglasses that work like any other sunglasses and the polarized film provides 99% UVA/UVB protection. Razer rates the Anzu glasses as filtering 35% of the blue light that hits your eyes throughout the day which is helpful because studies have linked blue light to sleep trouble. There is hands-free calling that can be synced with a smartphone or accessed through the touch controls on the frames. And for this, there is also a Bluetooth speaker and a mic built into the glasses. In terms of battery life, it should get you around 5 hours of talk-time so you may not need to charge them every day.