Unopened Black WF-C500 Wireless Earphones Lightweight and compact true wireless earphones with a body weight of 5.4g and a case weight of 35g. Despite their small size, they offer high battery performance and a compact design, allowing for 20 hours of playback. They have a good balance from high to low frequencies, with natural and clear vocals. DSEE complements compressed audio sources to CD quality, and you can also adjust the sound quality to your liking. With IPX4 water resistance, you can enjoy music without worrying about rain or sweat. They use a simultaneous left and right transmission method, achieving a stable connection and low latency. Type: Canal type Connection type: True wireless (left and right separated) Structure: Sealed type (closed) Drive method: Dynamic type Body operation switch: Button Driver size: 5.8 mm Charging terminal: Charging case: USB Type-C Wireless function Wireless: Bluetooth Bluetooth version: Ver. 5.0 / Class 1 Continuous playback time: Up to 10 hours Charging time: Approximately 2.5 hours Supported codecs: SBC, AAC Microphone: ○ Sound quality adjustment: ○ Automatic power-on function: ○ Automatic power-off function: ○ Waterproof/dustproof performance: IPX4 Remote control: ○ AI assistant equipped Google Assistant Amazon Alexa AI assistant call function: ○ Color: Black Thank you for viewing. Sony Model name: WF-C500 Please read the profile before purchasing.