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CO USPrice observed at Costco U.S. (national catalogue)

JBL PartyBox 130 Portable Party Speaker with Wireless Microphone

JBL

Costco.com price

$399.99$449.99−11%

Profit breakdown

Costco.com price$399.99

Amazon Buy Box Price$599.90

Referral Fee (15%)-$89.99

FBA Fulfillment FeeNot included

Profit before FBA fees and taxes$109.92

ROI+28%

This estimate leaves out FBA fees and sales tax. Signed-in members see the exact profit on their own captures.

Amazon match

Online price observations at Costco.com

2 observations between Oct 30, 2026 and Nov 2, 2026 — price unchanged at $399.99.