【360° Omnidirectional Speakerphone】TOALLIN S68 professional conference speakerphone equipped with 3 noise-reducing microphones, with dynamic background noise-reduction technology, echo cancellation, 360° omnidirectional voice pickup, enjoy clear and smooth video conferencing. 【Fine-Tuned Hi-Fi Speaker】Built-in high-fidelity speaker up to 4W outputs, with fine-tuned sound quality, providing excellent performance for the treble part, can hear the other party's voice clearly during an audio call. This speaker can also be used for listening to music and other entertainments. 【Wireless or USB Connection】The built-in high quality wireless module can connect to various devices via wireless Bluetooth(Long press the wireless pairing touch button to enter Bluetooth pairing mode). At the same time, we provide a USB A-C cable for devices that cannot connect wirelessly. NOTE: This item does not include a USB receiver. 【Long Battery Life】Built-in 3000mAh battery, can support up to 10 hours of talk time, providing clear, smooth and stable audio and video experience. 【Supports Cascade and External Expansion Microphone】We also equipped it with ports for cascade and expansion microphones. You can cascade two S68 speakerphones by using a 3.5mm audio cable(Not included. Please use a male-to-male and 4 pole audio cable, maximum length is 9ft). Also, you can use an expansion microphone(Not included) to achieve longer distance voice pickup. 【360° Omnidirectional Conference Speakerphone】TOALLIN S68 Professional bluetooth conference speakerphone equipped with 3 digital silicon microphones, arranged in a 360° array and record voices anywhere in rooms.