Features: Dual moving coil, AAC decodingand 6mm speakerbring you immersive and natural sound. IPX5 Waterproof, well withstanding sweat and rain. LED battery consumption displayfor the charging case lets you know the real-time power. The powerful compatibility of BT5.0 chipenables intelligent connected devices to connect most BTdevices in the market. Fast flash chargingfor quick recharging and 320mAh charging casefor long-lasting use. Noise reduction technologymakes your voice coherent for crystal-clear callseven in noisy environments. Smart touch control, compact and light weightboth well fit ear canal without burden. 3.