3.5 mm jack socket 3.5 mm jack socket


Note: This product is certified B-goods. The goods have been inspected and are in a technically perfect condition. Visual defects on the packaging or on the product itself (scratches, discoloration) can not be excluded and do not constitute grounds for complaint.
Of course, your right of withdrawal remains unaffected.

On all refurbished items you get full warranty of 2 years.

The Oehlbach BTR 4.2 Bluetooth transceiver inspires despite its compact format with a variety of applications. The 2in1 adapter allows both sending and receiving audio signals, wirelessly via Bluetooth. Audio signals that are played in analog or via the optical digital input can be sent to compatible headphones or active speakers with the aid of the Bluetooth 4.2 protocol. In receiver mode, the BTR 4.2 accepts the Bluetooth signal from a mobile device or computer, then outputs it via the transceiver's integrated 3.5mm jack interface. With support for aptX, Qualcomm True Wireless Stereo and an extremely low latency of under 40ms, the Oehlbach BTR 4.2 delivers outstanding acoustic performance in any situation.


Qualcomm aptX
Qualcomm aptX Low Latency


Input voltage
5 V
Input current
1 A
Input power
5 W
Sampling rate
48 kHz
Bit depth
16 Bit
Housing material
More than five Inputs
Weight (gross)
230 g
Scope of delivery
BTR 4.2, power supply, Toslink cable, Toslink/3.5mm adapter, USB-A cable, 3.5mm jack cable User manual
Temperature range:
Transmission standard
Bluetooth 4.2
Air humidity range
5 bis 90 %
Operating elements
Receiver/transmitter selector switch
Item no.

The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Oehlbach is under license. Other trademarks and trade names are those of their respective owners.

Qualcomm aptX and the aptX logos are owned by Qualcomm Technologies, Inc. and/or its subsidiaries. Use is granted.

The Qualcomm aptX - Low Latency Logo is owned by Qualcomm Technologies, Inc. and/or its subsidiaries. Use is granted.