Advanced Voice Enhancement: Thanks to the custom Digital Signal Processing algorithm and AEC technology, the DOSS FreeTalk speakerphone could optimize your voice in real-time and ensure everyone is heard crystal-clear without background noises and echoes. Exceptional Audio Experience: Magnetic levitation speaker and two microphones arranged in a 360° array capture voices from all directions within 3 meters available. The full-duplex audio technology ensures the remote conference call will not be interrupted and realizes the voices of both sides talk and heard smoothly. Compatible With Platforms: DOSS FreeTalk Bluetooth conference speaker supports multiple devices and applications, such as Skype, Google Hangout, Webex, Zoom, FaceTime, GoToMeeting, etc. And could be connected via Bluetooth or TYPE-C USB for teamwork collaboration. Adjustable Phone Holder: DOSS FreeTalk holds well your phone or tablet and can be adjusted to any angle you want during a film, a live-streaming, or a video call; Enjoy non-stop entertainment provided by the Qi-certified wireless charger up to 10W. Hold Entertainment Anywhere: The built-in battery provides 8 hours of talktime. With a lightweight and compact design, easy to carry entertainment anywhere you are. Also, the supplied travel case will protect the DOSS FreeTalk from external impact damage when you’re on business trips, on an airplane, or in the car. Specifications Input: DC 5V 2A Battery: Li-ion 3.7V 1500mAh Charging time: 3 hours