3 Button Interface for ease of use while riding Dhwani by Blu HD Speakers for Hi-Definition Audio & Calls 20+ hours of Battery Life for extended riding usage Wind Noise Suppression at Mic Over the Air Firmware Updates 360° App Support Weighs just 63 gms HS1 Tech Specs Bluetooth Version 5.3 Audio: Dhwani by Blu HD Speakers Mic Type: Flexible Gooseneck Ear-piece Dimensions: 8.5mm thickness, 40mm diameter Battery Details: Li-Polymer 300mAh Battery Charging Time: 1h (10% to 90%); 1h 40m (0% to 100%) Battery Run-time (Music Streaming at Full Volume): 20h Battery Standby Time: > 150 days