Mi B15 Over-Ear Wireless Headphones Red 68H 40mm 32Ω 105dB

Over-Ear Wireless Headphones with 68-Hour Battery

The Mi B15 over-ear wireless headphones deliver long-lasting audio in a red finish. A 40-millimeter driver unit produces sound across a 5 Hz to 20 kHz frequency response with 32-ohm impedance and 105-decibel sensitivity. Bluetooth connectivity works up to 33 feet, and a 3.5-millimeter connector provides a wired option. The lithium-ion battery reaches full charge in two hours.

Suited for All-Day Listening and Calls

These headphones suit commuters, students, and remote workers who need a single charge to last through multiple days. Six EQ modes adjust the sound for music genres or spoken-word content. The built-in microphone handles hands-free calls and online meetings. Foldable construction and a weight of 0.44 pounds make them easy to pack. Buyers who require active noise cancellation or high-resolution codec support should consider other models.

68-Hour Operating Time Decides the Fit

The 68-hour operating time is the specification that determines whether this model matches your routine. If you regularly spend long stretches away from a charger — travel, shift work, or back-to-back study sessions — this endurance covers you. If your listening sessions are shorter and you prioritise advanced noise cancellation or premium codec features instead, a different headset will serve you better.