Yamaha True Sound: extraordinary realism, detail and clarity Crystal-clear calls with advanced mic design and Qualcomm cVc (Clear Voice Capture) Ambient Sound: choose when you need to be aware of your surroundings Listening Care: intelligent equalization for full-range sound at lower listening volumes Water and sweat resistant (IPX5-rated) — ideal for sport and weather Stable wireless connectivity with Qualcomm TruewWireless Mirroring and Qualcomm aptX Adaptive Audio Long-lasting: up to 30 hours of total battery life (8.5H + 21.5H) Easy controls for phone calls music playback and Siri/Google Assistant activation What's included: TW-E5B earbuds, charging case, USB-C cable, 4 sets of eartips (XS, S, M, L)