- Open AirDroid Desktop Client
- Log in to your AirDroid account (if you didn't register yet, please sign up for an account first)
- Go to the Messages feature
- Click New message
- Enter phone numbers after "To:" (Click Enter button when the phone number is finished) Or you can click the + button to choose multiple contacts

- Enter your content, click Send then the message will send out
- Open AirDroid Web Client(web.airdroid.com), log into your account (if you didn't register yet, please sign up for an account first)
- Click Messages
- Click New message
- Enter phone numbers after "To:" (Click Enter button when the phone number is finished) Or you can click the + button to choose multiple contacts

- Enter your content, click Send then the message will send out