The Harman Kardon Onyx Studio 9 in Black is a portable Bluetooth home speaker designed to deliver immersive sound with a focus on clear vocals and deep bass. It utilizes a 120mm woofer and three 20mm tweeters to produce a 50W RMS output, covering a frequency range from 50Hz to 20kHz. Connectivity is handled via Bluetooth 5.3, and the device supports Stereo Boost Pairing for those who want to expand their audio experience, while the HK One App allows for OTA updates to keep the system current. Its circular aesthetic is defined by a black frame made from 90% recycled aluminium, which serves as both a sturdy stand and an integrated handle for easier movement around the home. The exterior is wrapped in a soft, durable black fabric and features tactile silicon buttons on top for intuitive control. Weighing 4.2 kg and measuring 289.2 mm by 287.5 mm with a depth of 130 mm, it balances a substantial presence with portability, supported by a battery that provides up to 8 hours of playback. A built-in USB port is also included, allowing you to charge your mobile devices while listening.