HELM Audio Bolt DAC/AMP
USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio, THX Certified
THX CERTIFIED AUDIO OUTPUT: Exclusively designed for ultra-low harmonic, crosstalk & crossover distortion. Unlike other mobile MQA-DAC designs, the HELM BOLT physically isolates the DAC from the USB connector for improved EMI isolation, and uses a three oscillator design for superior frequency lock with dramatic improvements over single oscillator DAC designs.
Little Bear B4-X Portable Dual-Mono Vacuum Tube Headphone Amplifier; Mini Balanced Audio Headphone Amp B4 Upgrade Version
High-end making material and craft: using gold-plated socket, original nichicon electrolytic capacitor, original DALE resistors and precision ring resistance. Prompt and courteous customer service.
FiiO A3 Portable Headphone Amplifier (Black)
Superior sound quality through expertly selected components and design, utilizing OPA1642 preamp and AD8397 amp section.
Neoteck Portable 3.5mm Headphone Amplifier with Bluetooth 5.0 Receiver
Two-Stage Gain Switch, 16-150 Ohm HiFi Earphone Amp, Aluminum Matte Surface
1500mAH Rechargable Lithium Battery, It adopts a rechargeable lithium battery with 1500mAH capacity, which allows it to stay working more than 8 hours. Plus, there is a volume control knob for volume adjustment.
Neoteck Portable 3.5mm Headphone Amplifier Two-Stage Gain Switch
16-150 Ohm, Aluminum Matte Surface
Aluminum Matte SurfaceFashion Design Provides You a Comfortable Handheld Feeling While the Aluminum Matte Surface Makes it Durable
FiiO A1 Silver Portable Headphone Amp A1
Durable anodised aluminum Chassis
LVY Hi-Fi Headphone Amplifier Portable Headphone Amp 3.5mm Stereo Audio Input Out (Headphone Amp)
Mini HiFi headphone amplifier,which make it convenient to carry, can output remarkable sound without distortion.
Laboen Headphone Amplifier Portable 3.5 mm Audio Amp with Lithium Battery for MP3
MP4, Tablets， Smart Phone, Digital Player, Computer PC
Headphone Amp adopts a rechargeable lithium battery with 2000mAH capacity, which allows it to stay working more than 12-15h.
MYPIN Headphone Amplifier
Portable HiFi Headphone Amp 3.5mm Stereo Audio Gain Switch Support Impedance 16-300Ω Headset for MP3/MP4 /Phones/Digital Players/Computers/Xbox one, PS4, PS5 Controller
Portable and Lightweight -- This headphone amp is designed to enhance your music listening experience wherever life takes you; A sleek, sturdy shell and chassis allow for a durable use
VOZA BD210 Alexa Built-in Portable Bluetooth DAC Amplifier Makes Any Headphone Wireless
More than 12 hours non-stop Wireless and Hi-Res play time.