Audiodesign Foldable bluetooth headphones, integrated microphone and micro SD reader, wired headphones

Specifications:
-Type: Closed
-Impedance: 16 Ohm
-Sensitivity: 98 +/- 3dB
-Frequency response: 20 Hz – 20 Khz
-Rated power: 400mW
-Maximum power: 1200 mW
-Driver size: 40
-Driver magnet: Neodymium
-Built-in microphone: Yes
-Cable type: OFC
-Detachable Cable: Yes
-Cable length: 3 m
-Adapter 3.5 –> 6.3: NO
-Headphone weight: 265 gr
-Bluetooth: 5.0
-BT Compatibility: SPP, HFP, A2DP, AVTCP
-Code. BT: BT 900
Battery: 300mA
Stand by duration: 100h
Operating duration: 10h
Charging connector: Micro USB
Charging time: 3.5 hours
Micro SD reader: Yes
SD compatible files: MP3, WMA, APE, FLAC, MP4, WAC, AIFF, AIFC
Code:BT900.