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Black rectangular speaker kit with sun visor clip and rotary dial

Avantree Roadtrip BTCK-12 Car Speaker & FM Transmitter Kit

SKU CH-3HY3-66AQH

A 2-in-1 Bluetooth speaker and FM transmitter kit with dual 3 W drivers, auto power via motion sensor, and a rotary dial for hands-free control

  • TypeSpeaker
  • Vehicle TypeMusic,Car, Car, Music
  • ColorBlack
  • Woofer MaterialAcrylonitrile Butadiene Styrene (ABS)
  • Surround MaterialABS
  • MidrangeAuto Power On Off, Portable Speaker
  • Dual 3W speakers deliver clear calls and audio
  • FM transmitter streams phone audio to car stereo
  • Auto power on/off via motion sensor saves battery
  • Rotary dial controls volume and activates voice assistant
  • Compact ABS build fits sun visor for portability

2-in-1 Bluetooth Speaker & FM Transmitter

The Avantree Roadtrip BTCK-12 combines a portable Bluetooth speaker with an FM transmitter in one sun-visor mounted kit. It lets drivers take calls, trigger a voice assistant, or stream phone audio through the car stereo without permanent installation. The unit powers on and pairs automatically when you enter the vehicle and shuts down when you leave.

35 W RMS power rating

The speaker delivers 35 watts RMS from dual 3 W drivers, setting the baseline for call clarity and music volume inside the cabin. Peak power reaches 396 watts for short bursts, but sustained output stays at the RMS figure. Buyers who need louder continuous output for a noisy highway commute should look at higher-powered alternatives.

Dual 3 W drivers for voice-focused audio

The two 3 watt drivers are tuned for spoken-word intelligibility rather than deep bass, so navigation prompts and phone conversations cut through road noise. Music playback is serviceable for podcasts or light listening, but the system runs out of headroom for bass-heavy tracks or high-volume party use. The 6.18 inch mounting depth fits most sun visors without blocking the driver's view.

Highlights

  • Dual 3W speakers deliver clear calls and audio
  • FM transmitter streams phone audio to car stereo
  • Auto power on/off via motion sensor saves battery
  • Rotary dial controls volume and activates voice assistant
  • Compact ABS build fits sun visor for portability

Specifications

BrandAvantree
SeriesBTCK-12
TypeSpeaker
ModelRoadtrip
Vehicle TypeMusic,Car, Car, Music
ColorBlack
Woofer MaterialAcrylonitrile Butadiene Styrene (ABS)
Surround MaterialABS
MidrangeAuto Power On Off, Portable Speaker
TweeterPortable Speaker
Voice Coildynamic_driver, Acrylonitrile Butadiene Styrene (ABS)
Frame ConstructionAcrylonitrile Butadiene Styrene (ABS)
Part NumberBTCK-12
Peak Power396 Watts
RMS Power35 Watts
Mounting Depth6.18 inches
FeaturesPortable Speaker, Sun Visor Mount, Passive, 3 watts

Questions about this item

How loud will the 35 W RMS rating actually sound in my car?

The 35 W RMS rating represents continuous power output from the dual 3 W speakers, providing clear call volume and audio playback that can be heard over typical road noise without distortion.

What does the FM transmitter connect to and what limits its audio quality?

The FM transmitter wirelessly sends audio from your phone to your car stereo by broadcasting on an FM frequency you tune the radio to, so sound quality depends on local FM signal congestion and the stereo's tuner sensitivity.

How much space does the 6.18 inch mounting depth require on my sun visor?

The 6.18 inch mounting depth is the front-to-back size of the speaker unit itself; it clips onto a standard sun visor and needs that much clearance behind the visor panel so the device sits flush without obstructing the driver's view.

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