- The active noise cancelling in these Groove-e Ultra buds blocks out background noise so you can focus on your tunes. - With their easy touch controls, you can skip tracks and answer calls with just a tap. - Fully charged, you get a whopping 28 hours of listening time (including charging case). - Enjoy a snug, comfortable fit with the 3 eartip sizes. Indulge yourself in unparalleled sound quality and convenience with the GV-TW10 Ultra Buds. These True Wireless Earbuds are engineered to deliver an exceptional audio experience, featuring Active Noise Cancelling (ANC) technology and a host of other advanced features for your listening pleasure. Specifications (earphones): Bluetooth version 5.4 Wireless range: 10M (open area) Battery: 50mAh x 2 Music playing time up to 7 hours (1 charge) Standby time: 200 hours Specifications (charging case): Case recharge capacity: 400mAh Charging time for case: 2.5 hours Digital display for battery charging Features: Bluetooth connectivity True Wireless Stereo (TWS)