This device has no display, just a sticker on the front (so the picture depicting a difference on what looks like a display is just an edited image!) The speaker would “support” hands-free phone only as far as your device can support hands-free with a BT speaker. Unable to get mobile to use it for hands-free or conference call. It HAS NO adjustment function of treble and bass (it has no functions or menu at all !) There is no in-ear function, and this device can NOT be linked to external high-power devices to amplify sound effects. Since it has no “functions”, it also has no microphone function as such. As a simple inexpensive (while on special) rechargeable BT speaker only, it serves its purpose. Pairing to phones (for music play only) has been quick and easy every time.
