Rules：
1. Campaign Duration:
The sign-up period for the early bird discount code will be open from 1st July to 31st August.

2. Discount Code Distribution:
All eligible participants who sign up during the campaign period will receive an early bird discount code via email. Discount codes will be sent to the email address provided at the time of sign-up.

3. Usage of Discount Code:
The early bird discount code can be used to pre-order the ENGWE M20 2.0 starting from 1st July. The discount code is valid until 31st August. After this date, the code will expire and can no longer be used.

4. Eligibility:
This campaign is open to residents of the 48 contiguous states of the US only.

5. Terms and Conditions:
The early bird discount code cannot be exchanged for cash or other products. ENGWE reserves the right of this campaign. By participating in this campaign, participants agree to receive promotional emails from ENGWE.