SANDBERG Bluetooth Earset Business Pro 80013319 126-25 Product Description: Sandberg Bluetooth Earset Business Pro - earphones with mic Product Type: Earphones - Bluetooth - wireless Recommended Use: Portable electronics, computer, TV Additional Functions: Qualcomm QCC3020 chipset Headphones Form Factor: Ear-bud - over-the-ear mount Connectivity Technology: Wireless Wireless Technology: Bluetooth Bluetooth Version: Bluetooth 5.0 Sound Output Mode: Mono Audio Specifications: Frequency Response 20 - 20000 Hz - Sensitivity 118 dB +/- 3dB Microphone: Boom Controls: Volume, mute, source selector Manufacturer Warranty: 5-year warranty