eSynic Portable Bass Boost Style Headphone Amplifier 16-300Ω by eSynic - Used condition

eSynic Portable Bass Boost Style Headphone Amplifier 16-300Ω — Open-Box, 21% Off

Name: eSynic Portable Bass Boost Style Headphone Amplifier 16-300Ω
Brand: eSynic
SKU: awhd-us-b0d9w7w4xk
Price: 19.56 USD
Availability: InStock

Brand: eSynic

Condition: Used - Mint

$19⁵⁶

$24⁶⁸

-21% Save $5¹²

Updated: 4 days ago

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Description

*🔊【+13.3dB Bass Boost - Studio-Grade Low Frequency Enhancement】*---:Our eSynic Professional Bass Headphone AMP Precisely amplifies 50Hz range by +13.3dB while maintaining midrange clarity. Perfect for EDM, hip-hop and cinematic content - hear every kick drum and synth bassline with visceral impact. * 🎛️【Precision Amplification - 16-300Ω Impedance Matching】*----:Our eSynic high impedance headphone amp Delivers 160mW@16Ω to 25mW@300Ω with <0.005% THD+N.Properly drives: Sensitive IEMs (16Ω) without hiss optimized for each impedance range. *🔋【8-Hour Runtime - Smart Power Management】*----:Our eSynic Rechargeable Headphone Amplifiers With 1000mAh battery provides: 8+ hours at 75mW (64Ω load) 5V/1A fast charging (0-100% in 2.5hrs)Includes 1m oxygen-free copper audio cable. *🛡️【Aerospace Aluminum Chassis - EMI Shielded】*----:Our eSynic Durable headphone amp 3.5mm is Made of 6061 alloy enclosure: Reduces RF interference by -42dB Dissipates heat during high-load operation Survives 1.5m drops (MIL-STD-810G tested) Weighs just 85g (95×52×13mm). *🌐【Universal 3.5mm to 3.5MM Connectivity - Plug & Play】*----:Our eSynic multi-device headphone amp Works seamlessly with:✓ Smartphones (With 3.5MM Audio Jack)✓MP3 players, iPods, personal media players, laptops, notebooks, or portable CD players. *🎁【Audiophile Gift Set - Limited Edition】*----:The gift that makes music come alive" - Perfect for holidays/graduations. Our Bass Headphone 3.5MM Audio AMP Comes With The 1 x Bass Headphone Amplifier,1 x USB Power Cable,1 x 12cm 3.5mm Audio Cable&1 x 100cm 3.5mm Audio Cable. Overview:
Bass headphone amplifier, delicate, compact, lightweight, and portable, which make it convenient to carry, can output remarkable sound without distortion.

Feature：
1. Mini HiFi headphone amplifier, It is delicate, compact, lightweight, and portable that it can be carry conveniently.
2. 3.5mm AUX input and output, SNR>100Db and THD+N 0.0003%, make it possibility to output not just louder sound, but a sharper and more real stereo sound without distortion.
3.Two-stage gain switch enhances the signal input into the amp circuit for optimal performance of the headphones.
4. Aluminum matte surface, fashion design provides you a comfortable handheld feeling while the aluminum matte surface makes it durable.
5. Rechargeable lithium battery, it adopts a rechargeable lithium battery with 1000mAH capacity, which allows it to stay working more than 8 Hours.
6. Universal compatibility, it can remarkably compatible with a various of digital devices, such as MP3 MP4 computer.

Specification：
Lithium Battery Capacity: 1000mAH
Amp Using Time: More Than 8 Hours
Amp Internal Voltage: ±4V/1A
Bass Amp battery voltage: DC3.7V - 4V
SNR>100Db
THD+N 0.0003%
Output Power: 40Mw in Impedance 16Ω
Adapted Headphone Impedance: 16-300Ω
Dimension: 95 x 52 x 13(L x W x H)

Package Content:
1 x Headphone Amplifier
1 x USB Power Cable
1 x 12cm Audio Cable
1 x 30cm Audio Cable
1 x User's Manual

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Product Details

SKU:: awhd-us-b0d9w7w4xk
Model:: ESY
Country:: US
ASIN:: B0D9W7W4XK

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Common questions about buying open-box and refurbished.

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Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $5 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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