Yealink W56H VoIP SIP DECT handset includes 6 programmable buttons, a 2.4 inch color TFT LCD. High quality HD audio along with a 3.5mm headset jack and a lithium battery. Note: The Yealink W56H Handset is for use with Yealink W60b, W60p, W41p, and RT30 System. You can use it with the W56P and W52P - this requires using firmware version (v81 for full usage of all features). Bundle includes: Yealink W56H IP Phone DECT Cordless Phone Yealink Start Guide Global Teck Microfiber Cloth Key Features: Auto Intercom Paging Long-lasting rechargeable battery: 30 hours of talk time, 400 hours in standby mode ECO Mode, ECO Mode+ Redial Mute 3-Way Conference Caller ID Display Call Hold Call Waiting Call Transfer Call Forward (Always/Busy/No Answer) DND (Do Not Disturb) Voice Mail Speed Dial Remote Phonebook NOTE: This handset requires that you use a Yealink Basestation to connect to your service provider. You MUST use a Yealink Basestation such as W60P or W60B Base or W56P/W52P/W52B Cordless System. This Yealink handset can work with the W52P/W52B Base but will default down to a basic phone without several features.