Samsung Galaxy Buds2 Bluetooth Headphones, Graphite The best sound quality Clear and rich sound with 2-way dynamic speaker. Call quality with background noise reduction solution. ANC (Active Noise Canceling) Up to 98% noise cancellation. Natural ambient sound with less interruption (Natural Ambient Sound). Perfect fit Compact size and light weight for all-day wear. Technical features: Dimensions: headset (17 x 20.9 x 21.1 mm) and case (50 x 50.2 x 27.8 mm); Battery capacity: 61 mAh per headset and 472 mAh for the case; Sensors: Accelerometer, IR, Hall, Touch, VPU; LED indicator: Yes (2 in the charging case); Bluetooth profile: HFP / A2DP / AVRCP; Microphone: 2 external microphones / one internal microphone.