American tech company Razer has launched their Anzu smart glasses that feature built-in audio playback capability. The glasses feature speakers on either side integrated into the stems, that boast 16mm audio drivers. The smart glasses also pack in touch controls that can change music tracks and control volume, and even activate any voice assistant like Siri or Alexa. The glasses offer up to 5 hours of battery life when playing audio, or up to two weeks when on standby. The glasses are available to buy in the US for around ₹15,000.