YAMAHA Yamaha True Wireless Earphones TW-E3B-A IPX5 AAC aptX Compatible Thank you for viewing. I used these for about a year after purchase, but I am selling them because I bought a different model. Here is the manufacturer's page: https://jp.yamaha.com/products/audio_visual/headphones/tw-e3b/index.html I have cleaned them with alcohol before listing them, but they are used items, so I would appreciate it if you could understand. 【Product Description】 Yamaha's unique Listening Care Focuses on the human auditory characteristics where low and high frequencies are less audible at low volumes, and the differences in how sound is heard in the listening environment, optimizing the sound balance according to the volume. Adopts Qualcomm's audio SoC System-on-a-Chip QCC3026 Supports the independent left and right communication technology Qualcomm TrueWireless Stereo Plus The compact housing that can be securely fitted in the ear Allows many customers to wear them Dedicated smartphone app Headphones Controller is available Listening Care on/off Auto power off settings You can easily perform operations such as checking the battery level while looking at the screen Compatible with JIS waterproof protection grade IPX5 equivalent for everyday waterproof use Specifications Type: Sealed dynamic type Driver diameter: 6mm Bluetooth version: Version 5.0 Supported codecs: SBC, AAC, Qualcomm aptX Supported content protection: SMC-T Charging time: About 2 hours for a full charge Playback time: Up to 24 hours (6 hours on the main unit, 3 times case charging) Playback frequency band: 20Hz〜20kHz Listening Care: ○ Active noise canceling: x Ambient sound: x TrueWireless Stereo Plus: ○ App operation: ○ Voice control Siri Google Assistant: ○ Waterproof specifications: IPX5 Weight: 5.0g per side