Despite its compact dimensions, the Oehlbach BTR 4.2 Bluetooth transceiver offers a wide range of possible applications. The two-in-one adapter allows the wireless sending and receiving of audio signals via Bluetooth. Audio signals transmitted in analog format or via the optical digital input can be sent to compatible headphones or active speakers via the current Bluetooth 4.2 protocol. When the receiver mode is enabled, the BTR 4.2 receives the Bluetooth signal from a mobile device or computer and then sends the signal via the transceiver's integrated 3.5mm jack interface. With support for AptX and Qualcomm True Wireless Stereo, as well as a latency of less than 40ms, Oehlbach's BTR 4.2 can deliver outstanding acoustic performance in any situation.