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header-product Wireless audio transmitter Synergy 21 S21-I-00145
24.49 €

Wireless audio transmitter Synergy 21 S21-I-00145

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Wireless audio transmitter Synergy 21 S21-I-00145

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Short description

The Synergy 21 S21-I-00145 is a wireless audio transmitter that utilizes Bluetooth technology for seamless connectivity. It features a 3.5 mm host interface and offers a transmission distance of up to 15 meters, making it ideal for various audio applications. Enjoy high-quality sound without the hassle of wires, perfect for home or professional use.
Available for order: 104 pcs.
Warranty: 2 Years
SKU: 3259710
Manufacturer: Synergy21
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
03.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
06.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.30 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
06.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer
Together cheaper
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Product information

Description

The Synergy 21 S21-I-00145 wireless audio transmitter uses Bluetooth connectivity to send audio from a 3.5 mm host interface to compatible receivers over distances up to 15 meters. Designed for straightforward setup, the compact transmitter supports common audio sources such as phones, tablets, laptops and audio players with a standard headphone output. The device enables cable-free audio transmission for listening, monitoring or basic AV integration where a short-range wireless link is sufficient.

Advantages

The transmitter offers simple Bluetooth pairing and a universal 3.5 mm connection that works with many consumer and professional audio sources. Its compact form factor and plug-and-play behaviour remove the need for complex installation. With a specified transmission range of up to 15 meters, the unit covers typical room-sized environments and small adjacent rooms. The design emphasizes reliable short-range wireless audio transfer and easy portability.

Suitable for

  • Streaming audio from phones, tablets or laptops to a Bluetooth speaker or headset
  • Connecting non-Bluetooth audio sources to Bluetooth-enabled receivers
  • Use in living rooms, offices, classrooms or small event spaces
  • Temporary setups for presentations, demonstrations or personal monitoring

Key specifications

  • Wireless technology: Bluetooth (version determined by manufacturer)
  • Host interface: 3.5 mm analog audio input
  • Maximum transmission distance: up to 15 meters (line of sight may vary)
  • Form factor: compact, portable transmitter
  • Power: powered via integrated battery or external supply depending on model (refer to manufacturer documentation)

How to use

Connect the 3.5 mm plug to the audio output of the source device, power on the transmitter and enable pairing mode according to the manufacturer instructions. On the receiving Bluetooth device, search for available transmitters and select the Synergy 21 transmitter from the list. Once paired, start playback on the source device; audio will be transmitted wirelessly to the paired receiver. For optimal performance, keep the transmitter and receiver within the recommended range and avoid large physical obstructions.

Usage recommendations

Place the transmitter in a location with minimal interference from other wireless devices and maintain a clear line of sight where possible. For continuous or professional use, verify power options and charging procedures in the manufacturer documentation and periodically check pairings to ensure stable audio transmission.

All features
Wireless technology:
Bluetooth
Product colour:
Black
Host interface:
3.5 mm
Housing material:
Plastic
Transmission distance:
15 m
Number of simultaneously connected devices (max):
1

Description

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Customer reviews

Customer questions

FAQ

How much does the Wireless audio transmitter Synergy 21 S21-I-00145 cost, and is it available for purchase?

The price is 24.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 104 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 03.08.2026 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. 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 Synergy21 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 Synergy21 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.