A quick 10-minute charge delivers up to 20 hours of immersive audio playback. Frequency Response Range 20Hz - 20,000KHz. Bluetooth Connection range Up to 10 meters; The flagship-level battery life delivers up to 30 hours of non-stop music on a single charge. Codec: Supports AAC and SBC 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 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: 30.0Hours; Model: E305a; Frequency Range: 20hz - 20khz; Control Type: Call Control