SONY Bluetooth Earphones New, Unused, Unopened [Brand] Sony (SONY) [Model Name] WF-C500 BZ [Color] Black [Headphones Type] In-Ear [Connectivity Technology] Wireless [Wireless Communication Technology] Bluetooth High-quality sound and customizable to your liking Well-balanced from high to low frequencies, with natural and clear vocals. DSEE restores compressed audio to near-CD quality, and you can also adjust the sound quality to your preference. Reliable basic performance Ultra-lightweight and compact at 5.4g for the main unit and 35g for the case. Sony Model Name... WF-C500