What does the white indicator light on the A1 rear panel mean?
If it's on and solid, this means the A1 is powered on, and currently connected to a Bluetooth-enabled device.
If it's on and blinking, this means the A1 is powered on but not currently connected to a device.
If it's off (and A1 is powered on), this means Bluetooth is in standby and not connected to a device. The A1, however, is still visible to your device, so simply connect using your device and it will automatically wake up.