Ugreen transmitter The Bluetooth transmitter has a built-in microphone that allows you to conduct conversations safely while driving. Pick up and talk on the phone without worrying about your life and wallet. The device also allows you to connect 2 phones to it at once. High sound quality The transmitter is equipped with Qualcomm aptX codec, which provides a low delay, making it fully synchronized with audio and video. Automatic pairing When the transmitter is activated, the transmitter automatically searches the recently paired device and connects to it. So it's enough that before you go into a car on your Bluetooth phone, and without additional procedures, the transmitter automatically pairs with it. Extended standby time The device has a built-in battery, thanks to which you can connect it not only to the radio in the car but also to headphones and other devices. The battery allows you to play music for 9 hours, while in standby mode it is able to operate for 300 hours. The charging time is about 2 hours. The latest technology Chip QCC30088 enables Bluetooth 5.0 transmission and provides more stable and faster data transmission and lower energy consumption. Thanks to this technology you can listen to music up to 10 meters from the source of transmission. Wide compatibility The device is compatible with speakers, headphones, amplifiers, mp3 players, phones/tablets, amazon echo dot and laptops. Compact construction The transmitter is small in size so that it can be connected to a wide range of devices. Specification Manufacturer UGREEN Model CM279 Product code 70304 Material ABS +Aluminium Bluetooth version 5.0 Playback time 9 hours Warning time 300 hours Loading time 2 hours Frequency 20Hz - 20kHz Battery capacity 180mAh, 3.7V Power output 28mW RL=16 Charge voltage 5,25V Interface 3.5mm jack AUX SNR >90dB Microphone Yes. Microphone sensitivity -38dB Scope 10 m Compatibility Universal, Bluetooth connection devices