This is one of the coolest products that I've seen in a while. Sony has just announced the HT-AX7 which is a three-piece portable surround sound audio system. Basically, there are three speakers. A front speaker, and two rear speakers that can be attached to the main speaker or placed anywhere else in the room to give a full spatial audio effect. https://www.youtube.com/watch?v-jih4g8mSH8 All three speakers are completely wireless and will last 30 hours, with 2.5 hours of play time on a 10 minute charge. You're able to connect to the unit via Bluetooth, and each of the units also connect to each-other wirelessly over bluetooth. The Sony HT-AX7 comes in at $499 USD (~$746 AUD) but an Australian release date or price hasn't yet been confirmed.