The JBL Live 670NC and Live 770NC offer the same upgraded features but different fit.
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JBL just expanded its mid-range Live headphones lineup. Here's what's new
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JBL® Introduces First Microphone and True Wireless Gaming Headset to Award-Winning JBL Quantum Range
JBL - Wikipedia
JBL upgrades its wireless headphones with huge battery life
JBL Unveils the Future of Audio with Live 3 Earbuds Series: A Revolution in Sound and Technology
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