Bluedio T4S User Manual

Appreciation for purchase, manual reading, and how to verify product authenticity.

Guidance on visiting the official website or calling for product information and support.

Crucial warnings about hearing damage, driving safety, temperature extremes, and battery handling.

Instructions for turning the headphones on, off, and entering pairing mode.

How to manage calls, redial, control music playback, and adjust volume.

Using ANC, selecting language, connecting to two phones, and Line-in/out audio.

Bluetooth version, range, frequency, profiles, and audio resolution details.

Driver size, impedance, frequency response, SPL, and output power.

Standby time, ANC time, charging time, temperature, and charging voltage/current.