Description:Using bluetooth-compatible 5 0 and EDR version, its performance is stable The call is as clear as face-to-face, because it uses omnidirectional mic CVC 8 0 dual noise reduction technology This speakerphone has voice broadcast, auto power on/off, multipoint connection, high clarity calls, voice assistant, long stby time noise reduction functions Made of ABS material, it is solid durable The length of the product is 85mm, the width is 80mm the height is 20mm Built-in digital power amplifier greatly improves the volume sound effect Multipoint connection enables it to support two mobile phones online at the same time It can be used for cars Item Name: SpeakerphoneMaterial: ABSBluetooth Version: 5 0Installation Form: Sun VisorBluetooth Transmission Distance: 10mDuration of Continuous Call: About 10 HoursBattery Capacity: 600mAh (Included)Features: Hs-free, Long Stby Time, Voice BroadcastSize Details: 8 5cm x 8cm x 2cm/3 35" x 3 15" x 0 79" (Approx )Notes:Due to the light screen setting difference, the item's color may be slightly different from the pictures Please allow slight dimension difference due to different manual measurement Package Includes:1 x Speakerphone1 x USB Cable1 x Metal Back Clip1 x User Manual