MOST COMMON RETURN REASON – Not a Bluetooth headset. This headset uses DECT technology for superior range and clear, reliable audio on desk phones and computers—it's not compatible with cell phones or other Bluetooth devices. OFFICE PHONE AND COMPUTER HEADSET – The LH570 offers Dual-Connectivity between desk phone and computer. Easily switch between the two with the press of a button. COMPATIBLE WITH OFFICE PHONES & MICROSOFT TEAMS - Sound great on all leading VoIP and desk phones: RingCentral, Polycom, Yealink, Cisco, Avaya, Mitel, and more. Works with Microsoft Teams, Zoom, and other online meeting software. UP TO 350-FOOT RANGE – Because it is NOT a Bluetooth headset, DECT UltraRange Mobility gives you 10 times the range of a basic Bluetooth headset. You can go anywhere in your house or office and stay connected without losing call quality. FREE 5-YEAR WARRANTY AND UNLIMITED SUPPORT – Warranty guaranteed by Leitner Headsets. For pre-sales support, click "Sold by Leitner Headsets" under "Add to Cart" to contact our US-based headset experts. The LH570 is the best headset for noisy office environments and the best office wireless headset overall. It's a wireless headset for office landline desk phone, which is noise cancelling. You can use it as a work from home headset or office headset, as it's designed to enhance your productivity. It's an avaya compatible wireless headset too. The wireless telephone headset is perfect for staying connected while working, so it's the best office wireless headset for work from home, because you can work and get chores done. It's a great wireless headset landline phone, because of it's noise cancelling headset microphone. It's also a headset with microphone for desk phone which is compatible with computers, so you don't need a phone to use it. If you are working on the computer, it's good for you since it's a wireless USB headset with microphone for PC too. Compatible with landline phones and as a cisco phone headset, it's a great headset for any office phone. If you need the freedom to move around while on the call, the wireless landline headset is perfect for that. If you or your office is on a VoIP system, it functions well as a VoIP headset. Also, if you need a office phone headset wireless for your call center, this wireless call center headset with microphone noise cancelling will be a top option for a dense work space. Ultimately, this DECT wireless headset will likely be a great benefit to you because of it's versatility. It is a wireless desk phone headset, wireless headphones with microphone for work, wireless headset with microphone, wireless headset office. This is the best wireless headset for office phones and the Microsoft Teams wireless headset. Upgrade your office setup with this wireless phone headsets for office phones today! It's a versatile headset for desk phone and PC, ideal for anyone who needs to work from home or in a busy office environment.