GEMBIRD FitEar-X100B Bluetooth TWS 80014283 Product Description: GMB Audio FitEar X100B - true wireless earphones with mic Product Type: True wireless earphones - Bluetooth Recommended Use: Portable electronics Colour: Black Headphones Form Factor: In-ear Wireless Technology: Bluetooth Bluetooth Version: Bluetooth 5.0 Sound Output Mode: Stereo Audio Specifications: Frequency Response 20 - 20000 Hz