Works well with amplifier
I had hoped this would work in the car so my son could plug his phone into the old stereo. While it did, the sound quality was terrible. I know this isn't what this is designed for - just letting you know in case you had the same idea.
It does work great with his guitar amp though. He's able to easily play music from his phone through the amp and the sound quality is great.

TRS Receiver
blafili 6dot35 1/4" TRS Bluetooth Music Receiver
- Pairing is one button — press PAIR, pick blafili 6dot35, LED goes solid.
- 1/4" TRS output for mixers, PA systems and active speakers (Bluetooth headphones, speakers and microphones not supported).
- Mono, stereo or TWS — two 6dot35 units pair into a true-wireless left/right set.
- 10+ hour battery, or USB as permanent DC power for fixed installs.

One plug,
instant Bluetooth.
Straight into the 1/4" jack
Plugs directly into mixers, guitar and bass amps, PA speakers and keyboard amps — the plug is the whole installation.
One-button pairing
Press PAIR, pick blafili 6dot35, and the LED goes solid — no app required.
Mono, stereo or TWS
Run a single unit, or pair two into a true-wireless left/right set.
10+ hour battery
Up to 10 hours per charge, ~2 h recharge — or leave USB-C connected as permanent DC power for fixed installs.
Plug into your gear.
| DEVICE | Works | Notes |
|---|---|---|
| Phones, tablets & computers (Bluetooth) | ✓ | Any Bluetooth source with aptX HD, aptX LL, aptX, AAC, SBC |
| USB-C audio from computer | ✓ | USB DAC 16-bit / 48 kHz |
| Powered speakers / amplifiers | ✓ | Line-level output — set amp volume as usual |
Nerdy by design.
- Brand
- blafili
- Connectivity
- 1/4" TRS plug, Bluetooth, USB
- Special Feature
- Hi Res Audio, LED Light, Portable, Stereo Pairing, USB Port
- Bluetooth Profiles
- 5.1, A2DP, AVRCP
- Supported Bluetooth Codecs
- aptX HD, aptX LL, aptX, AAC, SBC
- Audio Inputs
- Bluetooth and USB-C
- Unbalanced Audio Output
- 1/4 inch TRS male ×1
- USB DAC Resolution
- 16-bit / 48 kHz
- Rechargeable Battery
- Built-in lithium-ion 320mAh 3.7V
- Battery Life (Playback)
- Up to 10 hours
- Recharging Time
- Up to 2 hours
- Bluetooth Transmission Range
- Up to 32.8 feet (10 m)
- Charge Method/Port
- 5V DC USB Type C ( POWER ADAPTER NOT INCLUDED )
- Standby / Working Current
- <50uA / <=15mA
- Frequency Band
- 2.4 Ghz - 2.48 Ghz
- Dimensions
- 135 x 30 x 25 mm
- Frequency Response
- 20 to 20,000 Hz
- Distortion
- ≤0.1%
- Signal to Noise
- ≥101 dB
Rated 4.91 by 11 owners.
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Which box fits your rack?
| SPEC |
VIEWING
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|---|---|---|---|---|
| Price | $44.99 |
$109.00 |
$40.99 |
$21.99 |
| Best for | Guitar amps & PA speakers | Hi-fi stacks & home theater | Studios, PA & installers | First wireless upgrade for RCA stereos |
| Bluetooth | 5.1, A2DP, AVRCP | 5.1, A2DP, AVRCP | 5.1, A2DP, AVRCP | 5.2, A2DP, AVRCP |
| Codecs | aptX HD, aptX LL, aptX, AAC, SBC | LDAC, aptX HD, aptX LL, aptX, AAC, SBC | aptX HD, aptX LL, aptX, AAC, SBC | aptX Adaptive, aptX HD, aptX, AAC, SBC |
| Audio I/O | 1/4 inch TRS male ×1 | Bluetooth & USB-C | XLR male ×1 | RCA |
| Power | Up to 10 hours | USB-C powered (5V) — no battery | Up to 16 hours | USB-powered — no battery |
| View | View | View |
Before you ask.
Can I make my guitar amp Bluetooth?
Yes — the 6dot35 plugs straight into a 1/4" input, so any guitar amp, bass amp or PA speaker becomes a Bluetooth speaker for streaming music or backing tracks at line level.
Bluetooth receiver with 6.35mm jack?
The blafili 6dot35 is exactly that: a 1/4" TRS (6.35mm) Bluetooth 5.1 music receiver with aptX HD, TWS stereo pairing and a 10-hour rechargeable battery.





