Microlab H21 Bluetooth Powered Speaker Review


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Microlab H21 Bluetooth Powered Bookshelf Speaker Review

By Greg Schepers

Manufacturer: Microlab Electronics Co., Ltd
Product Name: Bluetooth Powered Speaker
Model Number: SP-H21BK
UPC: 878294032256
Price As Tested: $128.80 (Amazon / Newegg)

Full Disclosure: The product sample used in this article has been provided by Microlab.

For nearly two decades, Microlab has been an industry leader in producing high-quality audio solutions for the latest in cutting-edge technology. One example is its latest development, the Microlab H21 Bluetooth bookshelf speaker, which Benchmark Reviews has recently had an opportunity to put through its paces. Considering that the Microlab H21 is so beautifully constructed, having wooden cabinets wrapped in leather, it is clear that its role is to serve as the primary multi-device audio solution in your home.

What will be one of the primary objectives here is to determine whether or not the Microlab H21 is capable of filling its intended role. Considering that it can be connected to devices via 3.5 mm cable, RCA audio inputs, or Bluetooth, there is little doubt that it can. Virtually any device in your home that could use an audio boost can certainly get it from the Microlab H21.

Microlab H21 Bluetooth Wireless Speaker

Features & Specifications

These bookshelf speakers just scream quality right down to the stitching, so you will not be ashamed having the Microlab H21 on display. The ease of connecting it to the desired device and the versatility of the placement of this unit are also huge benefits. However, the main purpose is to deliver in terms of sound quality. The features and specifications below definitely indicate that it can.


  • Wireless Bluetooth music entertainment; playback from any Bluetooth devices
  • Bookshelf stereo speakers for all room types
  • Bluetooth AVRCP and A2DP profiles supported
  • Powerful and clear sound
  • Treble and bass effects: full range sound spectrum
  • Support any digital media player with 3.5mm stereo connection


Amplifier: Output power: 36 Watt RMS
Power distribution: 18 Watt x 2
Harmonic distortion: < 0.5 % 1 W 1 kHz
Frequency response: 50 Hz – 20 kHz
Signal/Noise ratio: > 70 dB
Separation: > 60 dB
Speakers: Tweeter driver: 1″, 10 Watt 4 ohm
Woofer driver: 3.5″, 20 Watt 8 ohm
Interfaces: Output: Terminal binding post
Input: 2RCA interface
Radio: Bluetooth
Bluetooth 2.1+ EDR (Enhanced Data Rate), A2DP, and AVRCP profiles
Power: Power adapter: Input – AC 100 V – 240 V 50/60 Hz, Output – DC 18 V / 2 A
Package Contents: H21 speakers x 2 pcs
Speaker interconnect cable, 3 m
AC power adapter
3.5mm stereo to 2RCA cable, 1.8 m
User manual


Product dimension: Right – 116 x 198  x 202 mm (W x H x D), Left – 116 x 189 x 202 mm (W x H x D)
Net weight: 4.7 kg
Giftbox dimension: 337 x 239 x 235 mm
Giftbox net weight: 5.1 kg
Export carton dimension: 492 x 351 x 257 mm
Export carton gross weight: 11.6 kg


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