JABRA Speak 750 UC USB/BT Link 370 80014071 7700-409 Product Description: Jabra SPEAK 750 UC - speakerphone Product Type: Speakerphone - Bluetooth - wireless - USB Recommended Use: Portable electronics, phone, computer, conference Connectivity Technology: Wireless Wireless Technology: Bluetooth Bluetooth Version: Bluetooth 4.2 Sound Output Mode: Mono Signal-To-Noise Ratio: 70 dB Microphone Operation Mode: Omni-directional Controls: Mute, volume, answer/end Manufacturer Warranty: 2-year warranty