Ausdom M04S NFC Bluetooth Over-Ear Headphones

The Ausdom M04S is a black-and-red over-ear wireless headset designed for everyday music listening, calls, travel, and computer use. It combines Bluetooth 4.0 connectivity with an integrated microphone, allowing compatible phones, tablets, and computers to handle audio and hands-free calls through one headset. NFC pairing is included to simplify connection with compatible NFC-equipped devices.

For listeners who want the convenience of wireless playback without giving up a wired backup option, the M04S includes a 3.5 mm audio connection. The supplied audio cable allows the headset to be used with compatible wired sources when Bluetooth is unavailable or the battery is depleted. The microphone does not operate while the headset is used in wired mode.

The M04S uses 40 mm drivers with a 20 Hz to 20 kHz frequency response, 32-ohm impedance, and 90±3 dB SPL sensitivity at 1 kHz. These specifications support full-range stereo playback for music, video, and general media. Bluetooth support includes HSP, HFP, A2DP, and AVRCP profiles for calling, stereo audio, and compatible playback controls.

A built-in omnidirectional microphone supports hands-free calling through the Bluetooth connection. On-headset controls provide power, answering and ending calls, volume adjustment, play/pause, and track navigation. The headset has a stated wireless operating distance of up to 10 meters under suitable conditions.

Its comfort-oriented layout includes soft ear cushions, a stretch headband, and rotating earcups to help accommodate everyday use. A built-in 400 mAh rechargeable lithium battery charges through Micro USB, with approximately 20 hours of music playback or talk time stated by the manufacturer. The M04S is a practical option for users seeking one headset for wireless mobile listening, calls, and wired fallback playback.

Key Features

• Bluetooth 4.0 Connectivity: Supports wireless audio and hands-free calling with compatible devices.
• NFC Pairing: Enables quick pairing with compatible NFC-equipped mobile devices.
• 40 mm Drivers: Provide full-range stereo playback from 20 Hz to 20 kHz.
• Wired Backup Connection: Use the 3.5 mm audio cable when wireless playback is unavailable.
• Integrated Microphone: Supports hands-free calls through the Bluetooth connection.
• 400 mAh Rechargeable Battery: Delivers stated all-day music or talk use between charges.

Design & Installation

The M04S uses an over-ear headband design in black and red, with soft ear cushions, a stretch headband, and rotatable earcups. Physical controls and connection points are integrated into the earcups, including the Micro USB charging port, 3.5 mm audio input, microphone, power/call control, volume controls, and media buttons. An LED indicator communicates charging, pairing, standby, incoming-call, and low-battery status.

No permanent installation is required. Charge the headset through its Micro USB port, place it in pairing mode, and select “AUSDOM M04S” in the Bluetooth menu of a compatible device; NFC pairing may be used with compatible phones. For wired operation, connect the included 3.5 mm audio cable to the headset and a compatible source; Bluetooth power is automatically turned off during wired audio use.