The Z2 Bluetooth must be in the off position similar to any other mobile device to maintain compliance.
The Extended Life battery is a rechargeable lithium ion battery that you can charge during the day for a night's worth of therapy. *** All Z1 Accessories Compatible with Z2 *** | Breas Z2 Auto APAP Machine for CPAP | Dark Gray You can use your favorite mask as long as it does not have proprietary connections. The PowerShell is great for travel where power is limited or even off the grid. Simply place the mask on your face and the therapy will start when the device senses that you have started to breathe.