The Yealink SIP-T54W is an easy-to-use prime business phone with an adjustable 4.3-inch color LCD screen that allows you to easily and flexibly find the comfortable viewing angle to suit your personal and environmental needs. With built-in Bluetooth 4.2 and built-in dual-band 2.4G/5G Wi-Fi, the SIP-T54W IP phone ensures that you keep pace with modern wireless technology and take the first chance in the future wireless age. The built-in USB 2.0 port allows USB recording or a direct wired / wireless USB headset or up to three Yealink EXP50 expansion modules. The Yealink SIP-T54W is a powerful and expandable office phone that delivers optimal desktop efficiency and productivity. Yealink SIP-T54W IP phone has an adjustable 4.3-inch graphic LCD that you can easily adjust to the comfortable viewing angle. In terms of audio quality, the SIP-T54W is coupled with the latest version of Yealink Optimal HD Voice technologies, including Yealink Acoustic Shield technology, which effectively eliminates background noise and interference and delivers a crystal clear voice even in a noisy environment. Meanwhile, in accordance with the latest hearing aid compatibility (HAC) regulations, the HAC handset helps the person suffering from hearing loss to hear the voice more clearly. The Yealink SIP-T54W IP phone offers you not only the built-in Bluetooth 4.2 for Bluetooth headsets and mobile contact synchronization, but also the built-in dual-band Wi-Fi for Wi-Fi connectivity, so you can easily access 5G Wi-Fi connectivity. Even if you want to expand your horizons for busy environments, or if you want to share a PBX with your small team by adding multiple handsets, simply turn your IP phone to the corded cordless phone using DECT technology. In addition, the IP phone can work with Yealink VC Desktop to share content from your laptop, making collaboration much easier.