Equipped with Qualcomm aptX, IPX7 waterproof, UV sterilization, and cVc8.0 noise cancellation and DSP technologies, Onyx Free guarantees crystal clear calls and safer use. Panasonic tactile switches ensure more comfortable operation and more precise control. Safer Than Ever BOX UV sterilization & IPX7 waterproof SPEKFIKASI: Technology Qualcomm aptX audio technology, cVc 8.0 noise cancellation technology, DSP Input 5V/500mA max. Chip Qualcomm® QCC3020, supports aptX, AAC, SBC Bluetooth Version 5.0 Bluetooth Compatibility HFP/HSP/AVRCP/A2DP Transmission Distance Up to 15 meters / 50 feet Water Resistant IPX7 Battery Capacity Earphones: 40 mAh;Charging case: 500 mAh Play Time Up to 7 hours (50% volume): up to 4 hours (100% volume) With the charging case: Up to 35 hours(50% volume) Charging Time Earphones: 1 hour Charging case: 2.5 hours Driver Unit 6mm Impedance 16Ω Microphone Sensitivity -42dB ± 1dB Dimension Earbud: 16.4 x 27.2 x 22.3mm / 0.65 x 1.07 x 0.88 inches Charging case: 66 x 32 x 30mm / 2.60 x 1.26 x 1.18 inches Net Weight Earphone: about 4 g / 0.14 oz ;Charging case: about 36.2g / 1.28oz. Package Contents 1 x Onyx Free True Wireless Earphones with Charging Case, 1 x Charging Cable, 1 x Warranty Card, 1 x User Manual