Technical Specification:

Impedance 16Ω
Driver (Full Range) 2 × 40 mm
Frequency Response 16 Hz - 40 kHz
Range 15 m / 49.21 ft
Use a 5.0V==1.0A (or higher than 1.0A) charger to charge Life Q20+.

Features:

Hi-Res Audio: Oversized 40 mm dynamic drivers produce Hi-Res Audio with treble extended to 40 kHz for exceptional clarity and details.
Hybrid Active Noise Cancelling: Four microphones and a digital active noise cancellation algorithm detect and filter out up to 90% of low and mid-frequency sounds.
All-Day Comfort: Memory foam earcups gently fit around your ears and the headband’s rotating joints adjust the angle of the earcups to adapt to the shape of your head.
40-Hour Playtime: Life Q20+ active noise-canceling headphones power multiple long-haul flights from a single charge with up to 40 hours of playtime in wireless ANC mode. Increase
Playtime up to 60 hours in standard wireless listening mode.

Supports:

Warranty: 6 months of warranty