# In-car Wireless Audio Adapter HOCO E53 — Bluetooth to Aux audio adapter for vehicles

**URL:** https://aio.lv/en/product--hoco-bs330478--10910486
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** FM Transmitters
**Manufacturer:** HOCO
**Manufacturer code:** BS330478
**EAN:** 6931474729750
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hoco-bs330478--10910486

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

HOCO E53 is an in-car wireless audio adapter that converts Bluetooth audio to a 3.5 mm auxiliary output for vehicle head units and speakers. It enables wireless streaming from smartphones and tablets to car stereos via Bluetooth pairing, supports hands-free call routing through the car system, and is designed for easy installation and in-car audio playback control.

## Long description

HOCO E53 is an in-car wireless audio adapter that converts Bluetooth audio to a 3.5 mm auxiliary output for vehicle head units and speakers. The compact adapter enables wireless streaming from smartphones and tablets to car stereos, and integrates a built-in microphone for hands-free call routing through the car audio system. Designed for simple installation and daily use, it provides up to 10 hours of continuous playback or talk time on a single charge and supports stable Bluetooth 5.0 connection within a typical 10 m range.
Advantages
The adapter supports Bluetooth 5.0 for reliable pairing and low-latency audio transmission to a car AUX input. An advanced decoding chip ensures clear music playback across a frequency response of 50–20,000 Hz. The integrated microphone and multi-function button allow answering, holding or rejecting calls and basic music control without touching the phone. Its small size and light weight make it easy to keep in the vehicle, while the included 0.5 m USB charging cable ensures convenient recharging.
Suitable for
Adding Bluetooth audio to cars with a 3.5 mm AUX input
Hands-free calling through vehicle stereo systems
Streaming music from smartphones, tablets and portable devices to speakers
Connecting older audio systems, headphones or external speakers without wireless support
Key specifications
Bluetooth version: 5.0
Wireless range: up to 10 m (line-of-sight)
Auxiliary output: 3.5 mm jack (output)
Charging interface: micro USB (includes 50 cm USB-A to micro USB cable)
Battery: grade A polymer, 145 mAh
Playback / talk time: up to 10 hours per charge
Charging time: about 2 hours
Standby time: \>200 hours
Frequency response: 50–20,000 Hz
Dimensions: 50 × 48 × 11.5 mm; Weight: 12.6 g
Color: black
How to use
Plug the HOCO E53 into the car audio AUX input using the 3.5 mm jack. Charge the adapter before first use using the supplied USB-A to micro USB cable until fully charged (about 2 hours). Enable Bluetooth on your smartphone or tablet, search for the adapter and pair it following the device indicators. After pairing, play audio from the mobile device — sound is output through the car stereo. Use the multi-function button to answer or reject calls and to control basic playback. When not in use, the adapter will enter standby to conserve battery.
Usage recommendations
For optimal audio quality, position the adapter where it has a clear line of sight to the paired device and keep the Bluetooth source within the recommended 10 m range. Charge the adapter regularly to maintain battery health and disconnect it from power once fully charged. Use the car stereo volume controls to adjust playback level and avoid excessive volume that could distort sound.

## FAQ

### How much does the HOCO E53 in-car Bluetooth to Aux audio adapter cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 454 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 23.07.2026 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 HOCO 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 HOCO 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/10910486/60913772_large.webp