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Product prices and availability are accurate as of Jul 14, 2026, 7:03 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
Zendstanding HA400 Headphone Amplifier -4 Channel Metal is available at Amazon. Use the price box above to jump straight to the listing.

FIFINE TECHNOLOGY
Fifine Headphone Amplifier 4 Channels Metal Stereo Audio Amplifier,Mini Earphone Splitter with Power Adapter-4x Quarter Inch Balanced TRS Headphones Output and TRS Audio Input for Sound Mixer-N6
from 1 retailers

FiiO
FiiO BTR11 Bluetooth 5.3 Receiver LDAC 3.5mm Built-in Mic Wireless Audio Headphone Amplifier Adapter (Black)
from 1 retailers

WallarGe
WallarGe Rechargeable Neckband Hearing Amplifier for Conversation or TV Watching, Digital Hearing Amplifier for Seniors Adults with Volume Control, Bluetooth Earphones for Seniors
from 1 retailers

eSynic
eSynic 16-150Ω Headphone Amplifier Poratble- HiFi 3.5MM Audio Headphone Amp Rechargeable with 2-Stage Gain Switch-Aluminum Alloy Body & 12H Playtime for Car/MP3&4/Phone/PC/Laptop (3.5mm AUX)
from 1 retailers
See today's price on Amazon
We link you to Amazon's live price — never a stale one.
See price at AmazonAmazon price
Product prices and availability are accurate as of Jul 14, 2026, 7:03 AM and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.
We refresh prices regularly, but retailers move fast. If you found this item cheaper somewhere we compare, let us know and we'll take a look.