Features: Solid Performance Integration: Silver business style bluetooth speakerphone with 6 built in microphones. Two bluetooth speakerphones could be daisy-chained to add more attendees. Plug and play easy set up solution provides you excellent conferencing experience. Battery life is rated at 18 hours for call time. Come with a soft carry pouch for anti-scratch protection. Enjoy Crystal-Clear Calls: Six mics arranged in 360° array could pick up sound from 5 meters range, make sure every voice could be heard by attendees clearly. Multi Connection Mode for Needs: The speakerphone could be connected to 2 Bluetooth devices like smart phone and 1 USB port device like laptop at the same time. Extensive Connect and Compatibility: According to actual needs, speakerphone could supports Bluetooth, USB, Dongle receiver connection for smart phone, computer, laptop etc devices. As a conference speakerphone, it performed well and is compatible with all kinds of leading conferencing apps for home office. Quick Set Up & Easy Controls: No drivers are required, whatever through Bluetooth or USB connection, connects instantly. Touch sensitive buttons make it easy for calling, hang up, mute/unmute and volume adjustment. What's In The Box 2x Bluetooth conference speakerphones 2x Travel Bags 2x USB Cables 1x Aux Cable 2x Dongle Receivers 2x Guide Manual Specifications: Microphones: 6, Omni-directional Speaker: 3W, Dynamic, 40mm Wireless range: Up to 10m(30ft), Class2 Wireless version: 5.0, compatible with 4.2/4.1/4.0/3.0/2.1 Paired devices: Up to 8 trusted devices Talk time: Up to 18H Wireless audio bandwidth: A2DP, Wide band Connectivity: USB and Wireless USB port: Charging and data connection Daisy chain port: Only for Daisy Chain mode Dimensions: 130mm(D) x 38.2mm(H)