ZS-407 100k-7.3GHz
We have replaced the version of tinySA ULTRA (ZS-405) with the new tinySA ULTRA Plus (ZS-406 and ZS-407).
tinySA ULTRA Plus will maintain the same look as the current version of tinySA ULTRA and is compatible with the current version of tinySA ULTRA's software, so users can easily migrate to the new tinySA ULTRA Plus.
A brief overview of their differences:
Batteries:
ZS-405 3000mAh
ZS-406 5000mAh
ZS-407 5000mAh
Normal mode:
ZS-405 100k-800MHz
ZS-406 100k-900MHz
ZS-407 100k-900MHz
ULTRA mode:
ZS-405 800MHz-5.3GHz
ZS-406 900MHz-5.4GHz
ZS-407 900MHz-7.3GHz




