The Topp Pro BT-STR is a Bluetooth wireless stereo audio receiver designed to stream high-fidelity sound from any Bluetooth-enabled device to professional audio systems. Featuring Bluetooth V4.0 + EDR with support for standard audio profiles like A2DP, the BT-STR delivers clear, high-acoustic-fidelity playback with an LED display and reliable performance up to over 20 meters (65+ ft) in open spaces. With a Class 2 transmitter and low distortion, this compact unit is ideal for pairing mobile devices, tablets, or laptops to mixers, PA systems, or speakers for simple wireless audio integration in live or installed sound setups.