Wireless Noise Canceling Stereo Headset LinkBuds S WF-LS900N (C) Ecru Brand: SONY Purchased new on January 4, 2023. The right earbud battery lasts about 1 hour. There are some minor dents and scratches on the case. All items in the images are included. Wearing style: Separate left and right, completely independent Earphone/Headphone type: Canal type Structure: Sealed Color: Beige系 (Beige-based) Wireless/Wired connection: Wireless Earphone/Headphone features: Noise canceling, Hi-Res, Microphone, Ambient sound mode, Sound quality adjustment, Waterproof, Splashproof, Remote control Low-frequency range (Hz): 20.0 Hz High-frequency range (kHz): 40.0 kHz Wireless standard: Bluetooth Bluetooth codecs: LDAC, AAC, SBC IP standard (waterproof standard): IPX4 Drive method: Dynamic type Driver size (mm): 5.0 mm Charging port: USB Type-C Weight (g): 9.6 g