★ Larger LCD Display: 1.7'' large display screen provides more information: song name, incoming call number, FM frequency, voltage of car battery, volume. The neck of bluetooth FM transmitter is made of plastic flex tub that allows you to bend and adjust the position of the unit in any direction. ★ Features Bluetooth V4.2 & EDR: Compared to earlier versions like Bluetooth V3.0 or V4.0, the latest bluetooth V4.2 ensures instant pairing and provides exclusive long life with a lower power consumption. Compatible with all bluetooth enabled devices, such as smartphone and tablet. EDR (Enhanced Data Rate) helps to ensure a faster data transmission rate and maintains a strong seamless connection without delay and current noise/buzz. ★ Hands-free Calling & & Crystal Clear Sound: Built-in quality microphone with Noise Suppression CVC Technology to create full duplex crystal sound quality. Automatically switch to hands-free mode from music playing when receiving a call. Seamlessly connects and switches between incoming calls and music. Just click a button to answer / redial / end a call.

APTX & APTX LOW LATENCY SUPPORTED. Powered by premium CSR8670 chipset, TROND BT-DUO S not only supports the latest Bluetooth V4.1, but also adds aptX & aptX Low Latency to both the TX and RX modes. With aptX, you can enjoy CD-quality sound wirelessly over Bluetooth connections with aptX-source devices like TV's, phones or tablets; with aptX Low Latency, you can now watch video while listening to wireless audio in a synchronized fashion AND without any noticeable audio delay TX MODE: BLUETOOTH TRANSMITTER. By plugging TROND BT-DUO S to your non-Bluetooth audio sources (TV, iPod, Kindle e-Book reader or Nintendo Switch/3DS), you can enjoy high quality music wirelessly or listen to late night shows without disturbing your family members on your Bluetooth headphones or speaker. Please also order TROND TD-BH01 Over-Ear Bluetooth V4.2 Headphones (ASIN: B075VLWPXF) for the best low latency performance RX MODE: BLUETOOTH RECEIVER w/ VOLUME CONTROL. TROND BT-DUO S can upgrade your old wired headphones (such as Bose QC25/QC15) or speakers into wireless with the support for aptX Low Latency. Its volume/track buttons allow you to play/pause music, turn volume up/down, and select track forward/backward. (NO hands-free calling due to lack of microphone; cannot be powered up automatically while you start the car ignition)