# Wireless adapter c-tech WAC-21 for Android Auto and CarPlay — USB connection

**URL:** https://aio.lv/en/product--c-tech-wac-21--11176164
**Data updated:** 2026-02-14 19:34 (EET)
**Category:** Android Auto & CarPlay Devices
**Manufacturer:** c-tech
**Manufacturer code:** WAC-21
**EAN:** 8595729901070
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 27.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--c-tech-wac-21--11176164

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

The c-tech WAC-21 is a wireless adapter that enables Android Auto and Apple CarPlay functionality via a USB connection. Designed to convert a wired in‑car infotainment interface to wireless use, it allows compatible smartphones to connect without a cable for hands‑free navigation, calls, media playback and messaging. Ideal for drivers who want wireless convenience while retaining original car USB port integration.

## Long description

The c-tech WAC-21 wireless adapter enables Android Auto and Apple CarPlay functionality over a USB connection, converting a factory wired infotainment interface into a wireless one. It connects to the car’s USB port and pairs with a compatible smartphone to provide hands-free navigation, calls, media playback and messaging without a physical cable while preserving the original USB integration of the vehicle.
Advantages
The adapter provides a straightforward way to switch from a wired to a wireless smartphone connection without modifying the car’s head unit. It supports both Android Auto and Apple CarPlay environments, maintaining low-latency audio and control signals for responsive navigation and voice assistant use. Its USB-based installation uses the existing power and data path of the vehicle, keeping the dashboard layout intact and avoiding additional mounting or power accessories.
Suitable for
 Drivers who want wireless Android Auto or Apple CarPlay functionality while using the factory USB port
 Vehicles with a compatible infotainment system that originally require a USB cable for smartphone integration
 Users who frequently use navigation, hands-free calls and in-car media streaming
 Situations where avoiding cable clutter and preserving the original car interior is desired
Key specifications
 Connection type: USB plug-in adapter for vehicle USB port
 Compatibility: supports Android Auto and Apple CarPlay wireless mode (requires compatible smartphone and head unit)
 Functionality: wireless audio, voice control, navigation and messaging passthrough
 Power source: powered via vehicle USB port
 Form factor: compact inline USB adapter for in-dash or console USB sockets
How to use
Plug the c-tech WAC-21 into the car’s USB socket used for smartphone integration. Pair your smartphone with the adapter following the on-screen prompts on the phone and the vehicle display; this typically involves enabling Bluetooth and Wi‑Fi on the phone and accepting the connection for Android Auto or Apple CarPlay. Once paired, the phone will communicate wirelessly with the vehicle’s head unit, allowing navigation, calls, music and messaging to be controlled through the car display and steering wheel controls as supported by the original system.
Usage recommendations
For best performance, ensure the smartphone has the latest OS updates and the Android Auto or CarPlay app/settings are up to date. Keep the adapter and USB port free from debris and secure the USB connection to avoid intermittent disconnects. If voice commands or media lag occur, try restarting the phone and re-establishing the wireless connection or connect temporarily with a cable to verify the vehicle head unit’s wired functionality.

## FAQ

### How much does the Wireless adapter c-tech WAC-21 for Android Auto/CarPlay cost, and is it available for purchase?

The price is 33.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 30.06.2026 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 c-tech 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 c-tech 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/11176164/61936989_large.webp