Boom Supersonic's XB-1 demonstrator craft will break the sound barrier for the first time during a Jan. 28 test flight, and you can watch the action live.

It can’t be used as a speakerphone, but at $24.99, Soundcore’s new Select 4 Go Bluetooth speaker is claimed to have 20 hours of battery and can be paired for stereo sound. Image: Soundcore ...