Sony WH-CH400 (Black) On-ear wireless Bluetooth® headphones at Crutchfield
User manual Sony WH-CH400 (English - 93 pages)
Sony SONY wireless headphones WH-CH400: 2018 model year with a Bluetooth-enabled up to 20 hours of continuous playback microphone Blue WH-CH400 L - want.jp
Best Buy: Sony WH-CH400 Wireless On-Ear Headphones Black WHCH400/B
Sony Bluetooth WH CH 400 for Sale in Charlotte, NC - OfferUp