# SENCOR Headphone SEP520BTBK TWS wireless earphones, Ø10 mm drivers, Bluetooth 5.0, 50 mAh earbuds + 2200 mAh charging case

**URL:** https://aio.lv/en/product--sencor-sep520btbk--10724924
**Data updated:** 2026-01-13 17:31 (EET)
**Category:** Headphones
**Manufacturer:** SENCOR
**Manufacturer code:** SEP520BTBK
**EAN:** 8590669301072
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.49 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 19.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sencor-sep520btbk--10724924

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.06.2026 | free |
| Pickup points | 18.06.2026 | 1.99 EUR |
| Courier delivery to door | 18.06.2026 | 4.99 EUR |

## Summary description

SENCOR SEP520BTBK are TWS wireless earphones with 10 mm driver units and Bluetooth 5.0 connectivity. Earbud impedance is 32 Ω ±10% with 97 dB ±3 dB sensitivity and 20 Hz–20 kHz frequency range. Built-in microphone sensitivity is −42 dB ±3 dB. Each earbud uses a 3.7V 50 mAh Li‑Po battery and the included charging case holds a 3.7V 2200 mAh Li‑ion pack. Supplied accessories: Micro USB cable and three sizes of silicone ear tips. Ideal for calls, music playback and mobile use.

## Long description

Wired-free in-ear headphones Sencor SEP520BTBK provide Bluetooth v5.0 connectivity and a compact charging base. The set includes TWS wireless earphones with 10 mm drivers, built-in microphones and three sizes of silicone earbud tips. The charging base houses a 2200 mAh Li‑ion battery while each earbud uses a 50 mAh Li‑po cell; charging and data use a Micro USB connector and the base offers a USB 2.0 output.
Advantages
The Sencor SEP520BTBK delivers a wide frequency range (20 Hz–20 kHz) and nominal sensitivity of 97 dB ±3 dB for clear sound reproduction. Low impedance (32 Ω ±10 %) supports compatibility with most mobile devices. Bluetooth v5.0 ensures stable wireless transmission with a maximum transmitter power of 2.5 mW in the 2.4–2.485 GHz band. The set is lightweight (86 g total) and includes three sizes of silicone tips for a customizable fit.
Suitable for
Listening to music on smartphones and tablets
Hands‑free calls using the built‑in microphone
Commuting and travel where compact charging is needed
General everyday use with Bluetooth devices
Key specifications
Driver unit: 10 mm
Impedance: 32 Ω ±10 %
Frequency range: 20 Hz – 20 kHz
Sensitivity: 97 dB ±3 dB (1 mW, 1 kHz)
Microphone sensitivity: −42 dB ±3 dB
Earbud battery: 3.7 V, 50 mAh Li‑Po (each)
Charging base battery: 3.7 V, 2200 mAh Li‑ion
Connector: Micro USB (in), USB 2.0 (out)
Bluetooth version: v5.0
Max. wireless transmitter power: 2.5 mW (2.4–2.485 GHz)
Weight (total): 86 g
Accessories: Micro USB cable; 3 sizes of silicone earbud tips
How to use
Charge the base using the supplied Micro USB cable and place the earbuds in the charging slots until fully charged. Remove earbuds from the base to power them on; enable Bluetooth on your device and select "Sencor SEP520BTBK" from the available devices. Use the on‑ear controls to play/pause music, adjust volume or answer calls. Return earbuds to the base to switch them off and recharge.
Usage recommendations
For optimal sound and fit, test the included silicone tips to find the best seal. Avoid exposing the charging base and earbuds to extreme temperatures or moisture. Use the Micro USB cable supplied with the product for charging and follow local regulations for recycling batteries.

## FAQ

### How much does the SENCOR SEP520BTBK TWS wireless earphones cost, and is it available for purchase?

The price is 23.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 15.06.2026 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 SENCOR 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 SENCOR 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/10724924/59803697_large.webp