Mi B15 Over-Ear Headphones Red 68H Bluetooth

Mi B15 Over-Ear Wireless Headphones

The Mi B15 is a foldable over-ear headphone with Bluetooth wireless connectivity and a 3.5 mm wired option. It suits commuters, office workers and students who want a single headset for music, calls and video meetings across phones, tablets and laptops. The adjustable headband and soft ear pads support long sessions without fatigue. Buyers who need active noise cancellation or multi-point pairing should look elsewhere.

Battery Life and Audio Headroom

The internal lithium-ion battery delivers up to 68 hours of operating time and recharges in about 2 hours. Six selectable EQ modes cover pop, rock, bass, vocal, podcast and video profiles, while the 40 mm drivers produce a 5 Hz to 20 kHz frequency response at 105 dB sensitivity. The 32 ohm impedance makes them easy to drive from portable sources. Bass-heavy listeners may find the low-end extension limited compared to larger closed-back models.

Build Integration and Practicality

Weighing 0.44 pounds, the headset folds flat for compact storage in a backpack or desk drawer. Bluetooth range reaches 33 feet, freeing movement during calls or pacing while listening. The detachable 3.5 mm cable provides a fallback when the battery is depleted or when connecting to in-flight entertainment systems. No proprietary app or dongle is required for basic operation.