Sony WI-C100_BU Inear Stereo Bluetooth Headset – Blue

* DRIVER UNIT – 9 mm * FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION) – 20–20,000Hz (Sampling frequency 44.1 kHz) * Up to 25 hours of battery life * DSEE™ restores frequencies lost in compression to produce high-quality sound that’s closer to the original recording * Fine-tune your sound using the Sony | Headphones Connect app * Splash-proof and sweat-proof with an IPX4 rating * Easy hands-free calling and voice assistant