O400HA | Headphones | Wearing style Handheld | Music/Everyday | Headset type binaural | Colour Black | Volume control Touch | Foldable Yes | Cable length 1.5 m | Connectivity technology Wireless | 3.5 mm connector Yes | Bluetooth Yes | 5.3 | Wireless range 15 m | Ear coupling Circumaural | Headphone frequency 20 – 20000 Hz | USB Type-C charging port Yes | Weight 0.35 kg