UGREEN Bluetooth 5.3 Car & Home AUX Receiver Adapter with Mic (90748)
The UGREEN Bluetooth 5.3 AUX Receiver Adapter (90748) brings wireless audio to any speaker, headset, or car stereo with a 3.5mm input. Powered by Bluetooth 5.3 and a built-in 300mAh rechargeable battery, it delivers stable, low-latency audio and hands-free calling for up to 15 hours before needing a recharge via its USB-C port.
Key Features
- Bluetooth 5.3 – faster pairing, more stable signal, and a transmission range of up to 15 m (49 ft) in open space
- Built-in microphone – supports hands-free calling alongside music playback
- One-to-two connectivity – connect two Bluetooth source devices simultaneously
- Up to 15 hours battery life – 3.7 V / 300 mAh internal battery with USB-C charging (5.25 V input)
- Noise reduction – designed for clearer sound during calls and music playback
- Volume adjustment button – onboard control without touching the source device
- 3.5mm audio output – compatible with car AUX ports, wired speakers, and headsets
- Wide frequency response – 20 Hz–20 kHz with SNR ≥ 90 dB and output voltage > 0.7 Vrms
Specifications
| Model | 90748 |
|---|---|
| Bluetooth Version | 5.3 |
| Frequency Range | 2.400 GHz – 2.483 GHz |
| Frequency Response | 20 Hz – 20 kHz |
| Output | 3.5mm Audio |
| Output Voltage | > 0.7 Vrms |
| SNR | ≥ 90 dB |
| Charging Port | USB-C (5.25 V) |
| Battery Capacity | 3.7 V / 300 mAh |
| Operating Time | Up to 15 hours |
| Transmission Distance | 15 m / 49 ft (no obstruction) |
| Functions | Music playback, hands-free call, volume adjustment, one-to-two pairing |
| Warranty | 1 year |
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Warranty
Warranty
- All products come with a 1-year official local warranty, unless mentioned otherwise.
- Accessories (such as cables, covers, power banks, etc.) are not covered under warranty.
- Please check your item at the time of delivery—you may refuse the order if you notice any damage.
- The warranty provided is an official local manufacturer warranty.
- Apple products include both local and international warranty, as per Apple’s policy.
Shipping & Returns
Shipping & Returns
• Shipping: Orders are processed within 0–2 business days. Standard delivery takes 0–5 business days depending on your location.
• Returns: You may return or exchange products within 10 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
No advance payments required—even for preorders. Pay on delivery or cancel anytime, hassle-free.
FAQs
What devices can I connect this adapter to?
What devices can I connect this adapter to?
Can I connect two phones to the adapter at the same time?
Can I connect two phones to the adapter at the same time?
How long does the battery last and how do I recharge it?
How long does the battery last and how do I recharge it?
What is the wireless range of this adapter?
What is the wireless range of this adapter?
How it compares
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| Product |
This itemUGREEN Bluetooth 5.3 Car & Home AUX Receiver Adapter with Mic (90748)
| |||
|---|---|---|---|---|
| Price | $19 | $18 | $18 | $20 |
| Availability | In stock | In stock | In stock | In stock |
| Brand | Ugreen | Ugreen | Ugreen | Ugreen |
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