One compact adapter. Two ways to go wireless. Use the Ultraboost AU02
as a Bluetooth receiver or transmitter to add wireless audio to cars,
speakers, TVs, computers, projectors and more.
Bluetooth 5.4RX + TX15 m RangeUSB-C
2-in-1 Connectivity
Turn Wired Audio Equipment into Bluetooth
The Tech-Protect Ultraboost AU02 is a dual-function Bluetooth 5.4 audio
adapter with a 3.5 mm AUX connection. A dedicated switch on the housing
lets you quickly choose between RX receiver mode and TX transmitter mode,
allowing one compact device to perform two different jobs.
In RX mode, the AU02 receives wireless audio from a smartphone or other
Bluetooth device and plays it through connected equipment such as a car
audio system, speaker or amplifier. Its built-in microphone also enables
hands-free calls while operating in RX mode.
Switch to TX mode and the adapter can send audio from a device with a
3.5 mm AUX connection, such as a TV, computer or projector, to compatible
Bluetooth headphones or speakers.
Dual Operating Modes
Receive or Transmit Audio
RX
Bluetooth Receiver
Connect the AU02 to a speaker, amplifier or car audio system through
the 3.5 mm AUX connection. Audio from your phone or other Bluetooth
source is then received wirelessly and played through the connected
equipment.
Includes microphone support for hands-free calling.
TX
Bluetooth Transmitter
Connect the AU02 to the AUX output of a TV, computer or projector.
The adapter transmits the audio wirelessly to compatible Bluetooth
headphones or speakers.
Ideal for movies, gaming and wireless music listening.
Key Features
Compact, Versatile and Easy to Use
Bluetooth 5.4Stable wireless audio connection with a range of up to 15 metres.
RX + TX ModesWorks as both a Bluetooth audio receiver and transmitter.
3.5 mm AUXConnects to a wide range of audio equipment using a standard AUX connection.
Built-in MicrophoneSupports convenient hands-free calls while operating in RX mode.
Up to 5 HoursProvides up to 5 hours of music playback or talk time per charge.
USB-C ChargingRecharge the 180 mAh battery in approximately 2.5 hours.
100-Hour StandbyDesigned for convenient everyday use with extended standby time.
Only 12 gLightweight and compact enough for use at home, in the office or in the car.
Product Highlights
Everything You Need for Wireless Audio
100% original Tech-Protect product
Supplied in original packaging
Bluetooth 5.4 with a connection range of up to 15 m
Two operating modes: RX receiver and TX transmitter
3.5 mm AUX audio connection
Built-in microphone for hands-free calls in RX mode
Up to 5 hours of music playback or talk time
Up to 100 hours of standby time
USB-C charging with approximately 2.5-hour charging time
Lightweight 12 g construction
Product Gallery
Ultraboost AU02 in Detail
Technical Details
Specifications
ModelAU02
Bluetooth5.4
Operating ModesRX (Receiver) / TX (Transmitter)
Audio Connector3.5 mm AUX
Wireless RangeUp to 15 m
MicrophoneYes, RX mode only
Battery180 mAh
Working TimeUp to 5 hours (music / calls)
Standby TimeUp to 100 hours
Charging TimeApproximately 2.5 hours
Charging ConnectorUSB-C
Dimensions100 × 22 × 13 mm
Weight12 g
ColorBlack
In the Box
What's Included
Adapter1 × Tech-Protect Ultraboost AU02
Charging Cable1 × USB-A to USB-C cable (0.3 m)
Documentation1 × User Manual
Bring Bluetooth to Your Existing Audio Equipment
Whether you want to stream music from your phone through a car stereo,
use wireless headphones with a TV, or add Bluetooth functionality to
older audio equipment, the Tech-Protect Ultraboost AU02 provides a
compact 2-in-1 solution for home, office and travel.
What our customers say
4.9★★★★★★★★★★
288 Google reviews · Qormi & Bugibba
Ooscar allvin
September 2026 · Qormi★★★★★★★★★★
Perfect costumer support
KKaren Freeman
September 2026 · Bugibba★★★★★★★★★★
David and Aman were amazing. We had trouble with our Auxiliary cord. They were patient knowledgeable and friendly
CCorinthia HR
September 2026 · Bugibba★★★★★★★★★★
Excellent service i really appreciate
Highly recommend
GGabriel Spiteri
September 2026 · Bugibba★★★★★★★★★★
Excellent customer service!
Sstefani balos
September 2026 · Bugibba★★★★★★★★★★
Very nice place! They helped me with my gadget for my scooter!
💛recommended
Ccharlo mamo
September 2026 · Qormi★★★★★★★★★★
Very helpful staff. Found what I was looking for😎
OOphelia Ramos
September 2026 · Bugibba★★★★★★★★★★
Very helpful and did solve the issues about my husband’s phone. Thank you
HHarold G
September 2026 · Bugibba★★★★★★★★★★
David was super friendly and knowledgeable and also patient with my parents
JJéssica Farias
September 2026 · Bugibba★★★★★★★★★★
went to buy a mobile microphone, they have different options and gave me very helpful advices to decide which one i should get :)
RRoseanne Mifsud
September 2026 · Bugibba★★★★★★★★★★
Excellent Service
Im very happy with the service I recieved . They were incrediblly helpful and always went out of their way to explain everything clearly and patiently. All of the electronics were excellent quality and I really apreciated the time and effort they put into helpong me! Highly Recommended!!
AAndy Angel
September 2026 · Bugibba★★★★★★★★★★
Increible atención
BBarbara Par
August 2026 · Qormi★★★★★★★★★★
Everything you need you can find, kindness and professionality
JJosy Salles
August 2026 · Bugibba★★★★★★★★★★
They are advertising the new Z Fold 8 ultra. We have the Z Fold 7, so we went there to check it out ans to buy a new mobile. I asked to see the phone because, in stores, they usually let you see and touch the phone before buying it.
The guy replied in a really sarcastic way: “As I am the professional here, I can confirm that it is a good phone.”
I was like: “What?”
Then I showed him that I already had a Z Fold 7 in my hands. He replied: “So, you already know that it is a good phone.”
Again, I was like: “What?”
So I explained that I simply like to see and touch the phone before buying it. He just told me: “OK, go to a big store. We don’t have the phone here.”
Well… not recommended. Even though I’m a big Samsung fan, I still want to check the phone for myself before buying it. It’s up to me.
Expertise on something? ChatGPT also has expertise and will probably tell me much more than a sales guy.
GGizzy W
August 2026 · Bugibba★★★★★★★★★★
Very helpful and friendly service.
Thanks so much.
RRachel Brincat
August 2026 · Bugibba★★★★★★★★★★
Amazing service and staff always ready to help and a vast selection of items to choose from.
Rrosalyn wencislao
August 2026 · Bugibba★★★★★★★★★★
Good service, David very knowledgeable and helpful
AAleksandra Davidović
August 2026 · Bugibba★★★★★★★★★★
Very pleasant experience, staff is happy to help and provide information
EEsslin Terrighena
July 2026 · Bugibba★★★★★★★★★★
Friendly, helpful team who are attentive and take their time to advise you with what product best meets your needs. Really appreciate the service!
NNina
July 2026 · Bugibba★★★★★★★★★★
Хороший ассортимент, профессиональные и приветливые сотрудники, помогли и подсказали с выбором
FFranco Lopez
July 2026 · Bugibba★★★★★★★★★★
David es un genio. Atencion 10 puntos. Gran variedad! 🤝👏
JJoseph El Sadig
July 2026 · Bugibba★★★★★★★★★★
Great service. Fast reliable and very professional people. Keep it guys u re great all of you.
AAmin Ahmed
June 2026 · Bugibba★★★★★★★★★★
Good sarvic
GGary Quenano
June 2026 · Bugibba★★★★★★★★★★
Impressing staff!!!thank you
AAshok Lohar
June 2026 · Bugibba★★★★★★★★★★
Good staff, perfect service, will recommend this shop over other
LLeonardo Primogeri
June 2026 · Bugibba★★★★★★★★★★
Fantastic store!
FFlake Gamer
June 2026 · Bugibba★★★★★★★★★★
Top service, my experience was very nice, they helped me with all the questions i asked very knowledgeable 100% recommend
EEwelina Paton
June 2026 · Bugibba★★★★★★★★★★
The best staff in QAWRA very helpful and friendly 👏🏻👏🏻👏🏻👏🏻 definitely highly recommend place 😊
RRiver Frey Wood
June 2026 · Bugibba★★★★★★★★★★
Zero stars if I could.
I purchased a fitness tracker from this store that failed to perform its most basic advertised functions. It would not reliably track steps, sleep, or heart-rate data, and the battery life was nowhere near what was claimed.
When I returned to the store for assistance, I was told the device had been checked and was supposedly working correctly. However, the problems continued exactly as before. Despite the tracker clearly not functioning as expected, the store refused to offer a replacement or further assistance and instead told me to deal directly with the manufacturer.
This is extremely disappointing customer service. When a product sold by a retailer appears to be defective, customers reasonably expect the retailer to help resolve the issue rather than simply pass responsibility elsewhere.
The most frustrating part was not the faulty device itself, but the complete lack of support once the sale had been made.
Based on my experience, I would strongly recommend that others think carefully before purchasing electronics from this business, especially if after-sales support and customer service are important to them.
MMarija Trpeska
June 2026 · Bugibba★★★★★★★★★★
The staff were really helpful and they knew a lot about their products. 10/10 I'd definitely recommend this store. Also, it is the only place in St. Paul's Bay selling Kodak, Polaroid cameras and digital cameras.
AAvishek Dahal
June 2026 · Bugibba★★★★★★★★★★
Fastest repair
Wholesale technology distribution for Malta's trade: stock, trade pricing and fast fulfilment.