The headphones do not turn on. (WF-C700N)
There is no sound, or sound is only heard from one side of the headphones - earbuds (WF-C700N)
SONY WF-C700N Wireless Noise Canceling Stereo Headset User Guide
Sony WF-C700N In-Ear Noise Cancelling Truly Wireless Headphones Earbuds - Black 27242925625
My headphones don't turn on (WF-SP800N)
Sony announces new WF-C700N headphones and WH-1000XM5 Midnight Blue - techbuzzireland
How to Pair and Connect WF-C700N Headphones with iPhone [Step-by-Step Guide]
Sony's new WF-C700N TWS packs great sound and smart features in a small $199 package; WH-1000XM5 now in new Midnight Blue color - The Tech Revolutionist
Sony WF-C700N review - news
Sony WF-C700N review - news
Sony WF-C700N Review : Well rounded sound but ANC could be better
WF-C700N, Help Guide
The headphones do not turn on. (WF-C700N)
Sony WF-C700N: Truly wireless noise cancelling earbuds - hi-fi+
Sony WF-C700N Lightning Review: Not Great, Not Terrible Either