The HD 250BT deliver a thrilling DJ-inspired audio experience, with Sennheiser’s famed transducer technology ensuring higher quality audio with dynamic bass. Thanks to a 25-hour battery life, advanced wireless technology and rugged design they can keep pace with the busiest lifestyles for a remarkable listening experience anytime and anywhere. Headphones with advanced wireless technology and high-quality sound including a dynamic bass – inspired by DJs Superior audio quality with AAC, AptX codec support, AptX Low Latency and unbeatable Bluetooth 5.0 connectivity 25-hours of battery life and long-lasting comfort thanks to the padded headband and ear pads Smart Control App enables a personalized audio experience with equalizer function and Built-in microphone for phone call. Sennheiser’s famed transducer technology as well as support for high-quality codecs such as aptX and AAC ensure remarkable audio quality with dynamic bass. Rock-solid Bluetooth 5.0 connectivity assures a better listening experience, while aptX Low Latency keeps audio perfectly synchronized with onscreen action when enjoying video. Whether listening to music, watching videos or taking calls via the built-in microphone, the HD 250BT can keep pace with the busiest lifestyles thanks to its outstanding 25-hour battery. The Sennheiser Smart Control App makes it possible to personalize the audio experience using an intuitive equalizer. With additional features such as rugged design, soft, noise-isolating ear pads and intuitive controls the HD 250BT is built to take on life’s adventures. Listen to your music the way you want. This free dedicated app for iOS and Android provides an effortless way to control, personalize, update and configure your Sennheiser headphone, headset or soundbar.