DEMO WORKSHEET / NOT SENT
PORTVANTA / Sound S1
Fictional concept. Example specifications only.

PROGRAM REVIEW
Connection: Bluetooth 5.3 target + USB-C power
Acoustic layout: Single 45 mm driver concept
Output target: 5 W nominal example, unverified
Supply: 5 V / 2 A USB-C target
Body: 92 mm diameter × 54 mm height example
Development MOQ: 600 units / finish, illustrative

BEFORE SOURCING
A Bluetooth version number does not guarantee a codec, feature or range. Confirm pairing profiles and acoustic acceptance criteria with the actual sample.

SAMPLE PATH
Appearance sample → acoustic prototype → paired-device review

REVIEW QUESTIONS
Pairing and reconnection across target devices
Distortion and frequency-response acceptance plan
Button endurance and USB power stability

This is a planning worksheet, not supplier evidence or a laboratory report.