ZEALOT B19 wireless Bluetooth headphones with dual 40 mm drivers (1.57 in) and a frequency range of 100–20,000 Hz. They feature Bluetooth 5.0 connectivity, active noise cancellation, a built-in microphone and synthetic-leather ear pads. Rated at 32 Ω impedance and up to 90 mW output with 1% total harmonic distortion. Charging is via cable; the set includes a charging cable and user manual. Not waterproof and CE certified.