How long can I leave my Wireless Concert One in standby before recharging it? The Wireless Concert One has a standby time of 840 hours, which is just over a month at 35 days. Related articles My Wireless Concert One cannot be turned off You can read the instructions for our Wireless Concert One here. How long is the battery life of the Wireless Concert One? What does apt-X® mean in Wireless Concert One? Can I connect Wireless Concert One to my smartphone with an AUX cable?