2-in-1 Bluetooth Audio Transceiver

Unit dimensions: 9.7 × 5.8 × 0.82 cm (3.82 × 2.28 × 0.32 in). Powered by a built-in 600mAh Li-polymer rechargeable battery offering up to 8 hours of usage (dependent on volume and signal strength). Micro USB charging input (5V/0.5A). Standard 3.5mm audio port. Bluetooth specification: v4.0; protocol support includes A2DP (high-quality stereo streaming), AVRCP (play/pause/volume control), HFP (hands-free telephony), and SPP HID (device communication). Receiver mode transforms analogue audio systems — including car stereos, desktop speakers and home amplifiers — into Bluetooth-ready endpoints. Once paired, streams audio directly from smartphones, tablets or laptops with automatic reconnection on power-up. Transmitter mode connects to line-out ports of non-Bluetooth devices (TVs, PCs, MP3 players) using the supplied 3.5mm cable, broadcasting audio wirelessly to Bluetooth headphones or portable speakers. Built-in ANC (Active Noise Cancellation) and AEC (Acoustic Echo Cancellation) reduce ambient interference and eliminate feedback — enhancing both voice call quality and stereo fidelity. Confirmed compatibility with Android and iOS smartphones and tablets, and all Bluetooth audio devices or stereo systems featuring a 3.5mm jack. No app, no setup — fully functional from first use.