The Yealink WH66 is the Industry-leading DECT wireless headset, with WH66 Dual and WH66 Mono two models, opening an entirely new form of desktop collaboration. Work seamlessly with major UC platforms and integrate natively with Yealink IP Phones. 4.0 inch (480 x 800) capacitive touch screen of base offers newly work experience, just one touch, all control. Act as a workstation, managing phone calls, connecting with multiple devices (desk phone/mobile phone/computer), charging mobile phone wirelessly, and even playing a speakerphone's role. Best of all, deploying such a multifunctional workstation only needs to plug directly. Easiest things to do, greatest convenience to enjoy Benefits Acoustic shield technology Optima audio experience 4" (480 x 800) capacitive touch screen LCD Multiple devices connection Crystal speakerphone mode (2) Built-in USB 3.0 hub Qi wireless mobile phone charger Customizable busylight All in one UC workstation: Desktop collaboration boosts efficiency a lot especially when Working from Home, but it can be also annoyed that the desktop is very messy with multiple device cables. Take control of your desktop collaboration environment with WH66: • Connect all devices you want with built-in Bluetooth and USB ports. • Expand PC's connectivity with 2-port USB 3.0 hub. • Control all calls on the 4.0 inch (480 x 800) capacitive touch screen by simply finger touch. • Function as a hand-free phone, freeing from wearing headset. • Charge mobile phone wirelessly and transform it into a nice efficient conferencing device. Be heard crystal clearly: With Yealink Acoustic Shield Technology, the two Microphones built in WH66 block the background noise automatically but ensure participant voice be heard clearly, greatly boost the communication efficiency. Interruption free: Busylight is enabled in WH66. With the light on the headset or BLT60 on the desk turning red, people around you would know that you are on the phone, instead of interrupting you unknowingly. Just stay focused on conversation, for higher efficiency, for better collaboration. Specifications General 4.0 inch (480 x 800) capacitive touch screen 2 feature buttons 1 Type-A USB 3.0 port Built-in Bluetooth 4.2 Connectivity: USB 3.0 & 2 x Bluetooth devices Integrated busylight LED indicator Built-in hub: 2 Type-A USB 3.0 ports Boom arm adjustable: 320° Charging stand (for headset) Battery Talk time: up to 13 hours (Mono), up to 14 hours (Dual) Standby time: 90 hours (Mono), 125 hours (Dual) Charging time: 2.5 hours (12V/2A) DECT Wireless range: up to 160m/525feet Secure DECT (level): Step B - authentication - DSAA,encryption - DSC (64bit) Cordless Advanced Technology: CAT-iq 2.0 Audio (headset) Microphone type: dual microphone Microphone sensitivity: -44.0+/-3 dBV Microphone frequency range: 100 Hz-10 kHz Speaker size: Ф 28 Speaker sensitivity: 92.5+/-3 dB, 0.179 V Speaker impedance: 32+/-4.8 Ω Speaker max output power: 10 mW Speaker frequency range: 20 Hz-10 kHz Speaker bandwidth - talk mode: wideband Speaker bandwidth - music mode: super wideband (Pending) Audio (base) Microphone type: ECM Omnidirectional microphone Microphone sensitivity: -38.0+/-2 dBV Microphone frequency range: 70 Hz-20 kHz Speaker size: 40mm*20.8mm Speaker sensitivity: 97+/-3 dB Speaker impedance: 4 Ω+/-15% Speaker max output power: 4 W Speaker frequency range: 160 Hz-20 kHz Easy call management Answer/End/Reject a call Volume up/down Microphone mute Move the microphone boom arm up to mute, or down to unmute In the box WHB660 Base WHD622 Headset Power Adapter 2* 1m USB 3.0 Cable Quick Start Guide