*Zealot B28* = Budget 4-in-1 over-ear wireless headphone. Zealot calls it a “gaming/stereo” headset, but it’s really an all-rounder for music, calls, FM, and SD card.
1. Key specs
**Details**
**Drivers** 40mm dynamic drivers, 32Ω impedance
**Bluetooth** V5.0, 10m range
**Battery** 500mAh
**Playtime** ~10 hours music, ~8 hours talk time
**Charge time** 2.5 hours via Micro USB/USB-C depending on batch
**Modes - 4-in-1** Bluetooth, TF/Micro-SD card, FM Radio, 3.5mm AUX wired
**Mic** Built-in mic + noise-cancellation for calls
**Extra features** LCD display on earcup for battery/mode, foldable design, adjustable headband, soft PU earmuffs
**Frequency** 20Hz-20kHz, SNR 85-100dB
**Weight** ~218g-459g depending on listing
**Colors** Black, Blue, Green, Red
2. What “4-in-1” actually means
1. *Bluetooth 5.0*: Phone/laptop/PC wireless.