Other products by Calrad Electronics
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Item #: 40BT3
MSRP: No Retail

40-BT3 | Portable Bluetooth Stereo Transmitter

Calrad's 40-BT3 Bluetooth wireless transmitter has a 3.5mm stereo input plug that can easily connect to portable audio device for wireless Bluetooth audio playback. Play music, media content from any device with a 3.5mm headphone jack up to 35 ft., the distance may vary with surroundings. Listen to your audio in comfort without a wired connection. Includes USB charging cable, Works with USB power or by battery power. Works with Calrad's 40-BT2 receiver or any standalone stereo receiver that has Bluetooth built-in that supports the A2DP protocol.

40-BT2 Bluetooth Receivers 40-BT2 


  • Bluetooth Specification: Bluetooth V2.1/V1.2
  • Function range: 10 meters
  • Frequency response: 2.4GHz-2.4835GHz
  • Receiving sensitivity: -74±4dB
  • Charging input voltage: DC 5V
  • Working time: Up to 10 hours
  • Charging time: About 2 hours
  • Dimensions: 1.82" (L) x 1.33" (W) x 0.327" (H)
  • Weight: 14g

Prop 65WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

In certain instances promotional prices will be offered listed above as a “Price with Rebate”, and are typically dated. In these cases Instant Rebate (IR) pricing is good sometimes only for the day only or only for the week. In order to be eligible for IR pricing – the order must be paid for AND picked up/shipped out. If you are placing an online order outside of business hours within your respective time zone, please add a note to your order for the team to confirm the pricing, or contact the branch the following business day to ensure that the item pricing carries over into the subsequent period. If an alternate branch location is still open in another time zone, please reach out to that group.

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