Specifications: Bluetooth version: V5.3 Earbud battery: 40mAh*2 Charging case battery: 400mAh Playtime: 6H Speaker: 13mm Speaker frequency: 20Hz~20KHz Input voltage / current: DC 5V/300mA USB: Type-C port

Here are the features of Havit TW947 Bluetooth Black Earbuds: True wireless stereo earbuds with Bluetooth 5.3 connectivity IPX5 water resistance for everyday use 13mm dynamic drivers for HiFi sound quality Environmental noise cancellation for clear calls and music Ergonomic design for a comfortable fit Long battery life with up to 4 hours of playtime per charge and 20 hours of total playtime with the charging case Easy to use with touch controls Available in black or white color