Sennheiser Accentum Wireless Headset Black (700174) is an over-ear wireless headphone designed for everyday use and travel. It features Bluetooth 5.2 for stable and energy-efficient connectivity. Active Noise Cancellation (ANC) and Transparency mode allow control over surrounding sounds. The built-in microphone ensures clear voice quality for calls. It offers up to 50 hours of battery life for long-lasting use.