Do you have a question about the ZKC PDA3501 and is the answer not in the manual?
Controls the device's power state.
Steps to turn the device on by inserting battery and pressing power key.
Steps to turn the device off via long-pressing the power key.
How to use the camera for scanning barcodes and QR codes.
Instructions for using the laser scanner for barcodes.
How to scan QR codes using the laser scanner.
How to insert a SIM card and configure the 3G data connection.
Specific SAR limits and test results for the device.