Headphones usams EP-39 (HSEP3902) stereo wired, 3.5 mm jack, white

Wired stereo headphones usams EP-39 (HSEP3902) in white provide compact, corded audio for devices with a standard 3.5 mm jack. Designed for everyday listening, voice calls and media playback on smartphones, tablets, laptops and audio players, these in-ear headphones combine a silicone earpiece, 10 mm drivers and a 1.2 m cord to offer a straightforward wired connection without the need for pairing or charging.

Advantages

The EP-39 delivers clear Hi‑Fi stereo sound with a wide frequency response and 101 dB speaker sensitivity for detailed playback. A built‑in noise reduction HD microphone improves call clarity for phone conversations and online meetings. The silicone in-ear design provides a secure and comfortable fit while the selected TPE cable material and PC components ensure flexibility and resistance to daily wear. One-button inline control allows quick answer/end and simple media control when compatible with the connected device.

Suitable for

• Listening to music and podcasts on smartphones, tablets and laptops with a 3.5 mm port
• Voice and video calls where a wired microphone is required
• Portable use during commuting or travel thanks to compact in-ear design
• Use with older devices or audio players that lack wireless connectivity

Key specifications

• Connection: 3.5 mm audio jack (wired)
• Driver diameter: 10 mm
• Frequency response: 20 Hz – 20 kHz
• Impedance: 32 Ω
• Speaker sensitivity: 101 dB
• Microphone sensitivity: -48 ±3 dB (noise reduction HD mic)
• Cable length: 1.2 m
• Materials: PC housing, TPE cable, silicone eartips

How to use

Insert the 3.5 mm plug into the audio port of your device. Place the silicone eartips gently into your ears and adjust for a comfortable, snug fit to optimise bass response and passive noise isolation. Use the inline one-button control to answer or end calls and to control playback when supported by the connected device. Speak normally into the inline microphone during calls and maintain a short distance between mouth and mic for best voice pickup.

Usage recommendations

For reliable sound and microphone performance, ensure the 3.5 mm connector is fully inserted and check device settings for microphone and audio output selection. Clean silicone eartips regularly and replace them if worn to maintain fit and hygiene. Avoid exposing the cable to sharp bends or crushing to prolong service life; store the headphones loosely coiled when not in use.