Oppo Enco Free 4 With Dynaudio Tuning, IP55 Rating Launched: Price, Specifications

Oppo Enco Free 4 has been launched in China, and the new wireless headset features a coaxial dual driver setup with a 11mm woofer and a 6mm tweeter. It offers up to 11 hours of playback without ANC, and 5.5 hours with ANC enabled. The TWS headset features IP55 dust and water resistance, according to the company.