M
Md R.
Sep 19, 2026
আলহামদুলিল্লাহ,,,,, আজকে প্রোডাক্ট হাতে পেয়েছি। অরজিনাল প্রোডাক্ট। আপনারা চাইলে নিতে পারেন। প্রোডাক্ট এর কোয়ালিটি টা 100 তে 100
Wuzhi Audio
ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221)
Tk3,200
In Stock (27)Delivery: Inside Dhaka Tk65 (1–2 days) · Outside Dhaka Tk130 (2–4 days)
Cash on Delivery all over Bangladesh · bKash, Nagad & cards accepted
7-day return for damaged, defective or wrong items — request it from the Track Order page.
Fast Shipping
100% Genuine
7 Days Return
Power your audio setup in Bangladesh with the ZK-ST21 Bluetooth Digital Amplifier Board featuring dual TI TPA3221 chips for 100 W per stereo channel and 200 W for subwoofer. Supports Bluetooth, AUX, USB, sound-card inputs. Delivers high-fidelity sound, low distortion, efficient Class-D performance, and built-in protection against overload, over-temperature, reverse polarity, and short-circuit.
1
ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) — price in Bangladesh & FAQ
What is the price of ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) in Bangladesh?
The latest price of ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) in Bangladesh is 3,200৳. You can buy the ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) at the best price from our website Voltech Electronics or visit our store at Dhanmondi , Dhaka, Bangladesh. Order online and pay Cash on Delivery anywhere in Bangladesh.
Is ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) available in stock?
Yes. ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) is in stock at Voltech Electronics and ships within 24 hours.
Is the ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) original, and does it have a warranty?
Voltech Electronics sells only 100% authentic Wuzhi Audio products. Ask us about the warranty for the ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) before you order. It is brand new and sealed.
How much is the delivery charge for ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221)?
We deliver the ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) all over Bangladesh. Delivery inside Dhaka costs 65৳ (1–2 days) and outside Dhaka 130৳ (2–4 days).
How can I pay for ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221)?
You can pay Cash on Delivery — check the product first, then pay. You can also pay online with bKash, Nagad, Rocket, Visa or Mastercard.
Can I return or replace the ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221)?
Yes. If your ZK-ST21 Bluetooth Digital Amplifier Board – 2.1 Channel 100W + 100W + 200W Subwoofer (TPA3221) arrives damaged, defective or wrong, request a return within 7 days of delivery from the Track Order page and we'll replace or refund it.
Customer Reviews
5.0
Based on 14 reviews
5 ★14
4 ★0
3 ★0
2 ★0
1 ★0
Bought it from us? Get Tk100 off your next order for a genuine review.
A
Abdullah ..
Sep 18, 2026
Alhamdulillah valo product paichi But amar smps ta dead hoe gese but Amp ta valo alhamdulillah
M
Md. S.
Aug 26, 2026
অনেক ভালো । সাউন্ড কোয়ালিটি অসাধারণ আউটপুট.
J
J R.
Aug 16, 2026
Khub valo amplifier ta output result just mind blowing Build quality performance all over 10/10 Sobai nite paren
A
Arif ..
Aug 16, 2026
প্রোডাক্টটি অরিজিনাল ও অথেন্টিক ছিল, আমি তাদের সার্বিক ব্যবসায়িক উন্নতি ও তাদের প্রতি শুভকামনা রইল...
M
mh H.
Aug 1, 2026
Product ta onek valo... Orginal product peyesi, Sobay nite paren
র
রাকিব ..
Jul 30, 2026
Ami confuse hoiya gacilam .. atto soto akta amplifier thiky atto sundor sound .. sbi nirvoy a neta paren
J
J.H. M.
Jul 24, 2026
nice amplifyre
M
Md A.
Jun 15, 2026
Khub bhalo ekta amplifier. Voltech thake prothome zk tb 21 neachilam, darun sound quality chilo. pore system upgrade korar jonno aita kini abong aita o amar prottasha puron korte pereche. Druto delivery and packing khub bhalo chilo.
S
Shamim i.
Jun 13, 2026
Sob kichui thik tak ache. Apnara nite oaren r sound quality best, r seller 100 te 100, thanks voltech.
S
Sahed A.
Apr 16, 2026
সাউন্ড কোয়ালিটি জাস্ট অসাধারণ! এই ছোট বোর্ড থেকে এত পাওয়ারফুল এবং ক্লিয়ার সাউন্ড আসবে ভাবিনি। বিশেষ করে সাবউফারের বেস (Bass) এবং ট্রিবল একদম নিখুঁত। যারা ঘরে হাই-কোয়ালিটি ২.১ সিস্টেম বানাতে চান, তারা এই ZK-ST21 নিশ্চিন্তে নিতে পারেন। ভোল্টেক এর সার্ভিসও খুব ভালো ছিল।"
N
Nripen
Apr 1, 2026
Good quality with good price. Thanks Voltech.
S
Sohan I.
Mar 30, 2026
প্রিমিয়াম কোয়ালিটি এক কথায় অসাধারণ আপনারা সবাই নিতে পারেন। হোম থিয়েটার সাউন্ড প্রোভাইড করে কোন ডিসটেশন নেই।
I
Indronill P.
Feb 12, 2026
Amake bhaiya basay eshe amplifier diye geche. Eta onek bhalo amplifier.Voltech kinle konodin thokben na. Ora onek bhalo quality dey, dam beshi holeo. Thank you so much bhaiya.
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