# Bluetooth receiver/transmitter UGREEN CM403 — 3.5 mm jack, Bluetooth 5.0, 145 mAh battery, black

**URL:** https://aio.lv/en/product--ugreen-6957303888931--11423123
**Data updated:** 2026-01-21 13:40 (EET)
**Category:** FM Transmitters
**Manufacturer:** UGREEN
**Manufacturer code:** 6957303888931
**EAN:** 6957303806591
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ugreen-6957303888931--11423123

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

UGREEN CM403 is a compact Bluetooth receiver and transmitter with a 3.5 mm jack and Bluetooth 5.0 support. It features a 145 mAh battery, PC housing and dimensions of 92 × 19 × 11 mm. Use it to add wireless audio to wired headphones, speakers or car stereos, or to stream sound from devices without native Bluetooth. Portable design provides convenient on-the-go audio connectivity.

## Long description

UGREEN CM403 is a compact Bluetooth receiver and transmitter with a 3.5 mm jack and Bluetooth 5.0 support. Housed in a PC casing, the device measures 92 × 19 × 11 mm and includes a 145 mAh battery. The CM403 adds wireless audio capability to wired headphones, speakers or car stereos and can also transmit audio from non-Bluetooth sources to Bluetooth headphones or speakers.
Advantages
The CM403 supports Bluetooth 5.0 for stable wireless connections and low power consumption. Its 3.5 mm host interface ensures compatibility with a wide range of audio equipment. The compact PC housing and lightweight dimensions make the device portable and easy to install in confined spaces.
Suitable for
 Adding Bluetooth to wired headphones or portable speakers
 Connecting smartphones or tablets to car stereos with a 3.5 mm aux input
 Transmitting audio from non-Bluetooth audio sources to Bluetooth headphones or speakers
Key specifications
 Host interface: 3.5 mm audio jack
 Wireless standard: Bluetooth 5.0
 Battery capacity: 145 mAh
 Housing material: PC (polycarbonate)
 Dimensions (H × W × D): 92 × 19 × 11 mm
How to use
Connect the CM403 to the 3.5 mm audio input or output of the target device, power on the unit and pair it with a Bluetooth source or sink according to the device pairing procedure. When used as a receiver, pair the CM403 with a Bluetooth audio source and plug the 3.5 mm jack into wired headphones or speakers. When used as a transmitter, connect the CM403 to the audio output of a non-Bluetooth device and pair with Bluetooth headphones or speakers. Observe on-device indicators for pairing and battery status.
Usage recommendations
For best performance, keep the CM403 within the typical Bluetooth range of connected devices, avoid strong radio interference, and recharge the battery before long use sessions. Use compatible 3.5 mm cables and ensure connectors are fully inserted for reliable audio transmission.

## FAQ

### How much does the UGREEN CM403 Bluetooth receiver/transmitter cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 393 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All UGREEN products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized UGREEN service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11423123/66063905_large.webp