The ZIZO Encore True Wireless Earbuds feature the latest active noise cancellation technology, powerful 10mm drivers, and up to 6 hours of listening from a single charge. Plus, the included charging case extends your playtime to over 20 hours. Also featuring transparency mode for the times you need to hear your surroundings; so you can listen your way, without missing a thing. With an IPX7 water resistance rating the ZIZO Encore True Wireless earbuds make it easier than ever to listen at home or on the go. Specifications: Bluetooth® version: V5.2 Earbud battery capacity: 45mAh x 2 Case battery capacity: 400mAh Charging port: USB-C Charging time: 2H Input: 5V/1A Output: 5V/1A Playing time (ANC on): 5H Playing time (ANC off): 6H Impedance: 32ohms±15% Transfer distance: 8m Sensitivity: 107 ± 3dB Speaker size: 10mm