Compact Dual-Use Bluetooth 5.0 Audio Adapter

Measures 97 x 58 x 8.2 mm and weighs approximately 42 g (inferred from size and plastic-metal construction). Contains a 600 mAh lithium-ion battery supporting up to 8 hours of active use. Operates at 2400 MHz with a line-of-sight range of ~10 m (33 ft). Complies with Bluetooth 5.0 specification and supports A2DP, AVRCP, HFP and SPP HID protocols. Data throughput: 2.1 Mbps. Includes a standard 3.5 mm male-to-male AUX cable for connection to speakers or headphones. Enables two primary workflows: (1) Transmit mode — sends audio wirelessly from Bluetooth source (e.g., iPhone, laptop) to non-Bluetooth speakers via their AUX input; (2) Receive mode — receives audio from Bluetooth source and outputs it via 3.5 mm jack to wired headphones. Automatic reconnection preserves pairing history. No external power or USB dongle needed during operation — fully self-contained. Engineered for multi-environment reliability: maintains stable link in vehicles (with metal cabin interference), handles intermittent signal loss gracefully, and delivers consistent latency below 120 ms — suitable for video sync and live content consumption.