OnePlus Bullets Z2 Bluetooth Wireless in Ear Earphones with Mic,

A single 10 minute charge gives you 20 hours of music and movies this time. A full charge provides up to 30 hours of battery life, you can keep the music going.12.4mm large size bass driver.
A quick 10-minute charge delivers up to 20 hours of immersive audio playback; The flagship-level battery life delivers up to 30 hours of non-stop music on a single charge
A large 12.4 mm bass driver delivers uncompromisingly deep bass for powerful beats. Experience incredibly rich audio detail at every frequency with the titanium coating dome. Codec: Supports AAC and SBC
Anti-distortion audio technology ensures your audio playtime stays silky-smooth. Thanks to the larger sound cavity and industry-leading algorithms, notes remain distortion-free
Water and sweat-resistant, the IP55-rated internals and design ensure your OnePlus Bullets Wireless Z2 stay all-weather ready
Battery Average Life: 30.0 Hours; Model: E305a