FiiO FT3 Over-Ear Open-Back Headphones (Open Box) - Discontinued headphone 3.5mm International version) is a Bluetooth

International version) is a Bluetooth audio circuit based on Qualcomm QCC chip independently developed by its Bluetooth development team

full version of Gig Performer

pressure chamber

BEST-IN-CLASS VOICE CALLS

they're not very versatile

FiiO FT3 Over-Ear Open-Back Headphones (Open Box) - Discontinued headphone 3.5mm International version) is a BluetoothFT3 Large Dynamic High Res Over Ear Headphones 60mm large dynamic driver Beryllium plated gasket + DLC diaphragm 350 high impedance Asymmetric internal and external magnetic circuit system Open back design Furukawa monocrystalline copper cable Aluminum alloy construction Lightweight hollow design 4 different audio plugs included Art of harnessing energy for great sound 60mm large dynamic driver The FT3s large dynamic driver also has other benefits.