11.What is the difference between the FW1 and EW1?

Differences between FW1 and EW1:
1. The noise floor of the FW1 has been improved in the circuit design;
2. Through the interactive operation with the charging case, the FW1 has been improved manners of forcefully entering pairing mode and clearing pairing which makes sense to the issue of enter pairing mode due to misoperation and losing connection between the left and right sides.
3. The driver unit of the FW1 is changed from dynamic driver to Knowles balanced armature. So it would achieve a more clearer and detailed sound performance.