Black in color Length: 0.15M; packed weight: 6.2g/38g OD: 4.0; pure copper, 20*0.08*4c GB4943.1-2022 CE/FCC/RoHS Certification Typical 1. Compatible with a wide range of gadgets, including tablets, laptops, and phones. 2. Small and lightweight for outdoor and travel use. 3. High-fidelity sound quality through lossless audio technology.