QOLTEC 50847 Wireless Headphones 80051462 Product Description: Qoltec Loud Wave - headphones with mic Product Type: Headphones - Bluetooth - wireless, wired - 3.5 mm jack Recommended Use: Portable electronics, computer Additional Functions: microSD card reader, FM radio Colour: White Headphones Form Factor: Full size Connectivity Technology: Wireless, wired Wireless Technology: Bluetooth Bluetooth Version: Bluetooth 5.0 Sound Output Mode: Stereo Audio Specifications: Frequency Response 20 - 22000 Hz - Sensitivity 112 dB +/- 3dB Impedance: 32 Ohm Controls: Volume control, answer/end, play/pause, voice assistant Manufacturer Warranty: 2-year warranty