# SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC

High-Fidelity Bluetooth Audio DAC with ESP32 & PCM1754

- **Seller:** [SOUNDit](https://www.lectronz.com/stores/soundit), St. Gallen, Switzerland
- **Price:** €15.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Audio, Equipment, ESP32
- **Country of origin:** Switzerland
- **Product page:** https://www.lectronz.com/products/soundit_box-high-fidelity-bluetooth-audio-dac

## Images

![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0NzQsInB1ciI6ImJsb2JfaWQifX0=--0054ce48a62eab8fb55a2f03d746cd63cfcc20af/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00001.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0OTAsInB1ciI6ImJsb2JfaWQifX0=--fa5a6221a65fb8ffd3a5f3c689787f5b33c823f6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00005.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0NzgsInB1ciI6ImJsb2JfaWQifX0=--7282937009ae400c56bc750d14eddcb93c3ffc1c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00002.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0ODIsInB1ciI6ImJsb2JfaWQifX0=--9b0844e3ed4e1680047009f7b4f00945188e2558/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00003.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0ODYsInB1ciI6ImJsb2JfaWQifX0=--f3d7da9f35ea54de6358a82c6c132392881ef981/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00004.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0OTQsInB1ciI6ImJsb2JfaWQifX0=--82f8b2d934ec50f9569e896f54fa663d87c3cbbd/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00007.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0OTksInB1ciI6ImJsb2JfaWQifX0=--a060140510cc4d13baa8bd4e486a7ff11d223d4c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/IMG_8350.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY1MDMsInB1ciI6ImJsb2JfaWQifX0=--8680e48cba3ff3f0597c97cfb3031a778b447052/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/IMG_8351.jpeg)
![SOUNDit_BOX – High-Fidelity Bluetooth Audio DAC](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY1MDcsInB1ciI6ImJsb2JfaWQifX0=--acd9c9d3e035a1d7e2045b43ee9519e6a5c2e97c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/IMG_8355.jpeg)

## Description

Bring your wireless audio to life with SOUNDit_BOX, a compact, high-quality Bluetooth A2DP audio receiver designed for audiophiles, hi-fi enthusiasts, and DIY makers alike. Powered by the versatile ESP32-WROOM-32E and paired with a Texas Instruments PCM1754 DAC, SOUNDit_BOX delivers clean, detailed analog sound from any Bluetooth-enabled device directly into your vintage stereo, active speakers, or amplifier.

    Power On: Press button for 1 second

    Power Off: Press button for 3 seconds

✨ Key Features

    Cable-Free Aesthetics: Built-in battery management lets you place the receiver anywhere on your desktop, shelf, or audio cabinet without dangling cables.

    Dedicated TI PCM1754 DAC: Pure line-level 24-bit analog output engineered to feed AUX, CD, or RCA inputs on home amplifiers.

    Integrated Hardware Battery Protection: Onboard Overvoltage (OVP), Undervoltage (UVP), and Short-Circuit/Overcurrent protection for safe battery charging and operation.

    Dual Power Modes: Runs on a single 3.7V Li-Po battery OR directly via standard 5V USB-C power.

    Smart Auto-Shutdown: Conserves battery life by automatically powering down during extended inactivity.

    Instant Universal Pairing: Works out of the box with iOS, Android, macOS, Windows, and Linux via standard A2DP Bluetooth.

🔋 Power & Battery Options

To comply with international air shipping regulations, a battery is not pre-installed, but setup is zero-friction:

    Option 1 (Plug & Play — No Battery): Simply plug any 5V USB-C cable into the board. It powers on and streams immediately.

    Option 2 (Wireless Battery Operation): Plug in any standard 3.7V single-cell Li-Po / Li-Ion battery with a 1.25mm pitch 2-pin connector (Molex 51021-0200 / PicoBlade compatible). The onboard charger safely charges it at 500mA whenever USB-C is connected.

Sourcing a Battery

Search Amazon, AliExpress, or eBay using these exact terms:

    3.7V LiPo battery 1.25mm Molex 51021

    3.7V LiPo PicoBlade 1.25mm

    ⚠️ CRITICAL POLARITY CHECK:

    Before plugging in your battery, verify that the Red wire (+) aligns with the [+] pad on the PCB, and the Black wire (-) aligns with the [-] pad. While the board features protection circuitry, reversing polarity on lithium batteries can damage components.

🛠️ Technical Specifications

    Bluetooth Controller: ESP32-WROOM-32E (A2DP Stereo profile)

    Audio DAC: Texas Instruments PCM1754 (24-bit / 96kHz capability)

    Audio Output: Line-level analog stereo signal (3.5mm jack / output pads)

    Power Input: USB-C (Resistor-coded 5V input)

    Charge Circuit: Integrated 500mA Li-Ion/LiPo charger + BQ29700 protection IC