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Black rectangular portable speaker with carry handle and shoulder strap, wood cabinet, RGB lights visible

TENMIYA BT-A66 30W portable speaker 2.1 CH 10h 4000mAh

SKU CH-D1B6-2Y1BY

A 30W 2.1 channel portable speaker with 10 hour playtime from a 4000mAh battery, FM radio and RGB lights

  • Audio channels2.1 CH
  • Sales unit1
  • Speaker setupSurround
  • Driver size2.5 in (6.35 cm)
  • Rated power200 W
  • Frequency range27 Hz - 120 kHz
  • 30W three-speaker system delivers powerful stereo sound
  • 1 channel design with passive subwoofer adds deep bass
  • 4000 mAh battery provides up to 10 hours playtime
  • Built-in FM radio and 3.5mm wired connection offer flexible listening
  • Comfortable handle and removable shoulder strap simplify transport

Portable 2.1 channel speaker for outdoor use

The TENMIYA BT-A66 is a portable Bluetooth speaker built around a 2.1 channel layout with a passive subwoofer. Its wooden cabinet houses 2.5 inch drivers rated for 200 watts peak power and a 30 watt three-speaker configuration. Wireless 4.2 connectivity and a 3.5 mm jack let you stream from phones or plug in a PC or TV for parties, camping or backyard listening.

Ten-hour battery life with low distortion

A built-in 4000 mAh lithium battery delivers up to 10 hours of continuous playtime on a single charge. Total harmonic distortion stays below 1% across the 27 Hz to 120 kHz frequency response, so bass remains clean at moderate volumes. The rugged wood enclosure and integrated handle with removable shoulder strap make transport simple without adding active cooling noise.

Sustained output holds steady for long sessions

Under extended playback the 30 watt system maintains its stereo separation and subwoofer impact without thermal throttling. Passive radiator design means no fan noise appears even after hours of use. Buyers who need multi-speaker pairing or a larger battery for multi-day festivals will need a different solution.

How it compares

Measured against everything we stock in Bluetooth & Party Speakers, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 72% of the 862 comparable items (median $39.99).

Specifications

Product
Brand nameTENMIYA
Product lineBT-A66
Model nameBT-A66
Part numberBT-A66
Product typeSurround/Rear Channel Speakers
Product colorBlack
Audio & video
Audio channels2.1 CH
Speaker setupSurround
Driver size2.5 in (6.35 cm)
Frequency range27 Hz - 120 kHz
Ports & slots
Connection typesWireless
Power
Rated power200 W
Power supplyBattery Powered
Size & build
Cabinet materialWood
Size and weight2.4 in × 3.96 in × 1.3 in
In the box
Sales unit1
More details
Remote controllerRemote

Questions about this item

How do I connect my phone to the BT-A66 speaker wirelessly?

Activate Bluetooth on your device and select the speaker from the available list; the 4.2 chip provides a stable wireless link for continuous playback.

What upkeep does the 4000 mAh battery need after months of use?

Recharge it fully at least once every few months when stored, and avoid leaving it empty for long periods to preserve capacity for the rated 10-hour playtime.

At what volume level does the 30 W amplifier begin to distort during a long set?

Total harmonic distortion stays below 1% at rated power, so sustained output near the 30 W limit remains clean before clipping becomes audible.

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