The OnePlus Bullets Wireless Z2 ANC are neckband-style earphones featuring 45dB Hybrid Active Noise Cancellation, 12.4mm dynamic drivers, and up to 28 hours of battery life. Key features include 3-mic AI call reduction, IP55 sweat/water resistance, quick 10-minute charging for 20 hours of playback, and Bluetooth 5.2 with 94ms low latency