UGREEN In-Ear Earphones – EP103

Overview & Variants

Model: UGREEN EP103, SKU 30637 (3.5 mm), also available in USB‑C (30638) and Lightning‑MFi (30631) versions
Warranty: 1 year.
Package contents: Earphones, 3 pairs of silicone tips (S/M/L), user manual.

Acoustic & Technical Specs

Driver: 10 mm dynamic (neodymium), titanium-coated diaphragm for balanced audio with solid bass.
Frequency range: 20 Hz–20 kHz; sensitivity: ~104 ± 3 dB; impedance: 32 Ω; rated power: 5 mW.
Cable length: ~1.2 m (120 cm) made of flexible TPE, with high durability (resistant to >2 kg tension, 5,000 presses, -40 to 75 °C)
Connector: Standard 3.5 mm TRRS; in-line mic and controls for playback and calls
Water Resistant: IPX 5 splash resistant (excluding full submersion)

Performance & Usability

Comfort: Ergonomic design with multiple ear-tip sizes ensures long-wear comfort.
Sound Profile: Warm, well-balanced sound. Good bass kick, smooth mids, crisp treble.
Noise Isolation: Passive isolation effective; mic picks up voice clearly in calls even though cellular call quality is modest—better over VoIP like WhatsApp or Google Meet.
Durability: Cable resists tangling and wear from daily use—all internal components built to last.

Controls & Mic

In-line remote:
Volume up/down
Center button: single press = play/pause or answer, double = next track, triple = previous
Long press = reject call or activate voice assistant