eSynic Portable Headphone Amp for High Impedance (16-300Ω)-1000mAh Battery Rechargeable HiFi Earphone Amplifier with 3.5mm AUX-2 Gain Levels– for Old Car Stereo/Mobile/Laptop/MP3/Gaming Consoles

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eSynic Make Your Life Easier

1️⃣ 🚗 “Alexa, find me a small amplifier that makes my old car’s AUX input sound louder and clearer without upgrading the stereo.”—-:For drivers of older vehicles without Bluetooth: This portable headphone amp connects between your phone/MP3 player and your car’s AUX input. It boosts the signal – so you get louder volume, fuller bass, and cleaner treble than plugging your phone directly into the car. The 16-300Ω impedance range means it can drive even high‑impedance headphones if you want to use them in the car. Compact and rechargeable (8+ hours), toss it in your glove box.
2️⃣ 🎧 “How can I properly drive my 300Ω Sennheiser HD600 headphones from my laptop without buying a desktop amp?”—–:For audiophiles and music lovers: Many laptops and phones struggle to drive high‑impedance headphones (300Ω like HD600, DT880). This pocket‑sized amp delivers 30mW into 16Ω, 15mW into 300Ω – enough to unleash the full potential of demanding headphones. The 2‑stage gain switch lets you match low (16-80Ω) or high (80-300Ω) impedance headphones for optimal volume and dynamics. Enjoy your music with SNR >100dB and THD+N as low as 0.0003% – ultra‑clean, no hiss or distortion.
3️⃣ 🎛️ Studio‑grade specs in a palm‑sized device—–: Signal-to-Noise Ratio >100dB – black background, no audible hiss even at max volume (silent track). THD+N 0.0003% – virtually no harmonic distortion, sound remains pure. 2‑stage gain – low for sensitive IEMs/efficient headphones, high for power‑hungry 300Ω cans. 3.5mm input and output – universal compatibility with phones, laptops, MP3 players, CD players, even gaming consoles. Aluminum housing –shields against electromagnetic interference, dissipates heat, and feels premium in hand.
4️⃣ 🔋 1000mAh rechargeable lithium battery – 8+ hours of playtime—–:No more buying AAA batteries. Charge via USB (cable included) in about 2-3 hours. Enjoy 8+ hours of continuous high‑quality playback – enough for a cross‑country flight or a full day of listening. The slim profile (95x52x13mm) slips into any pocket, backpack, or car door pocket. Includes two audio cables (12cm and 100cm) for flexible connection to various devices.
5️⃣ 🎁 Wonderful Choice—:Our eSynic Professional Headphone Amp Rechargeable is Perfect for: Audiophiles with 250-300Ω headphones Old car owners – boost AUX volume and clarity without head unit replacement Mobile listeners – upgrade your phone or laptop sound quality Gamers – enhance footsteps and environmental audio Music producers – low‑distortion monitoring on the go Gift for music lovers – Father’s Day, birthday, or holiday

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