The MPOW H12 IPO Active Noise Cancelling Headphones feature dynamic vocalism, durable plastic construction, and active noise cancellation. Originating from Mainland China, these headphones offer both wireless (Bluetooth 5.0) and wired (3.5mm) connectivity. They have a frequency response range of 20 - 20000 Hz, with a 40mm driver diameter, up to 32 Ω impedance, and 108 dB sensitivity. The memory foam ear pads provide comfort, and the headphones are equipped with CVC 8.0 mic for clear calls. Standby time is up to 40 hours (with ANC off), and music playback time is up to 30 hours (with ANC on). The package includes a user manual, carrying bag, charging cable, and detachable audio cable. Features include volume control, active noise cancelling, and a detachable cable.