This portable speakerphone is in Very Good condition with a few very minor marks. I have charged the battery, paired it very easily to my Samsung Android mobile phone - it didn't ask for a PIN which is 0000 - and then made a call to the phone. It rang and stated incoming call so i pressed the answer button and was able to hear the call through the speakerphone. It detected my voice and i spoke to my landline via the built in microphone.
I have also connected it to my computer via a Bluetooth dongle and it plays music and other sound so it can be used as an amplifier for general sound.
Please note that it has not been tested with Siri/Google voice.
A car charger with built in cable and usb connection is included as well as a separate USB cable.
For details of setup and use the user manual is available from several sources such as these : https://images.agptek.us/Download/User_Manual/CBS821W(T821)_User_Manual(Detailed_version_in_English_Spanish_German_French_Japanese).pdf
https://images-na.ssl-images-amazon.com/images/I/81Q7zoXLtlL.pdf
A video on setting it up and use can be found on YouTube here : https://www.youtube.com/watch?v=gm5z6hlL0o4