Hi-Fi audio shipped worldwide in 3-4 days via FedEx.
Powerful yet simple design for audiophiles.
Crystal-clear, high-res sound with wired and wireless connectivity.
Premium craftsmanship, made in Korea.





















SLASH4
Slash4 Bluetooth DAC – LDAC, aptX HD/Adaptive, AAC, Optical, Noise Isolation, Car & Home

Enjoy high-fidelity Bluetooth sound with crystal-clear, lossless audio. Perfect for both car and home audio systems, delivering powerful and immersive sound. Experience seamless connectivity with LDAC, aptX Adaptive/HD, and AAC support.
Enhance Your Drive with Hi-Fi Bluetooth

Seamless Wireless Audio
- Instant Connection: Upgrade your car audio with high-resolution Bluetooth in seconds.
- Crystal-Clear Sound: Advanced noise isolation removes interference for pure, rich sound.
- Auto-Reconnect: Effortlessly resumes playback with your last paired device.
Experience High-Fidelity Audio – Anytime, Anywhere
- Hi-Res Sound Quality: ESS9219 DAC delivers 24-bit/96kHz high-resolution sound.
- Versatile Connectivity: Optical input for car DSPs, home amps, and headphones.
- Advanced Noise Isolation: Reduces power noise for clear, uninterrupted audio.
Wireless & Optical Audio
Upgrade Your Car & Home Audio Instantly
Hi Res Bluetooth audio for car & home. Enjoy premium sound with LDAC, aptX Adaptive/HD, and AAC.
Advanced Noise Isolation
Pure Sound, No Distractions
Crystal-clear sound with noise isolation, minimizing interference for uninterrupted listening.
ESS Quad DAC Inside
24-bit/96kHz High-Resolution Audio
Enjoy 24-bit/96kHz sound with ESS9219 Quad DAC, delivering audiophile-grade clarity and depth.
Auto-Reconnect Feature
Instant Pairing, Hassle-Free Playback
Automatically connects to your last device for smooth, effortless playback.
About this item
- [Advanced Noise Isolation]: Blocks unwanted power noise for clear, uninterrupted sound in cars, home audio, and headphones.
- [Premium Bluetooth Codecs]: Supports LDAC, aptX Adaptive/HD, and AAC for high-resolution wireless audio.
- [Superior DAC Technology]: ESS Quad DAC ES9219 delivers 24-bit/96kHz high-fidelity sound.
- [Ultra-Low Noise Operation]: LDO regulator minimizes background noise for distortion-free audio.
- [Effortless Connectivity]: Automatically reconnects to the last paired device.
- [Optical Input Support]: Compatible with car DSPs, home amplifiers, and headphone amps for enhanced sound.
- [Compatibility Tip]: Best used as a standalone device. Android Auto and Apple CarPlay may affect audio quality.
Product Components
Dimensions |
0.82"D x 2.83"W x 0.51"H (22mm x 72mm x13mm) |
Advanced Noise Isolation |
Blocks unwanted power noise for pure, uninterrupted audio in cars and homes. |
Optical Output Support |
Connects seamlessly to amplifiers and speaker systems for high-fidelity sound. |
Powerful Headphone Amp |
3.5mm Headphone Amp for Dynamic & Balanced Sound |
LDO Noise Reduction |
PCB design minimizes background noise for crystal-clear audio. |
High-Performance Op-Amp |
OPA1692 op-amp delivers precise sound with minimal distortion. |
Hi-Res Bluetooth Audio |
Features QCC5125 + ES9219 Quad DAC for premium wireless audio. |
High-Resolution Streaming |
LDAC, aptX HD, aptX Adaptive & More (24-bit Hi-Res) |
Seamless Auto-Reconnect |
Instantly reconnects to your last paired device for hassle-free playback. |
LPF Noise Filtering |
Removes unwanted noise for a clean and uninterrupted listening experience. |
USB-A Power Supply |
Provides stable and reliable power via USB-A. |
Wireless Range |
Stable Bluetooth Connection (Up to 15m/50ft) |
Package Contents |
Includes Slash4 Body, 3.5mm Cable, and User Manual. |
Plug & Play for Car Audio | Plug into AUX, and it auto-reconnects when the engine starts. |
Home Audio with Optical Input |
Streams Hi-Res Bluetooth audio directly to your home system. |
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check_circle In Stock

SLASH4






















Our Premium Quality Audio Philosophy
We are committed to delivering the best Bluetooth audio quality by incorporating 10 years of real-world feedback from Slash customers. Our products are developed in collaboration with audio engineers who have over 20 years of experience and award-winning product designers. Crafted by these experts in Korea, the Slash series is a true reflection of premium audio mastery. You can enjoy it with complete confidence—100% made in Korea.
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