M55 Memory sound universal earphones with mic 3.5mm jack with high elastic 1.2m cable one-button operation control 1. Earphones speaker: 14.2mm. 2. Sensitivity: 98db±3db. 3. Earphones audio plug: Ø3.5mm. 4. Earphones cable: high elastic cable with enameled wire. Wire length: 1.2m, weight: 16g. 5. Microphone: earphones controller with mic. 6. Remote control: functional single button, volume adjustment button, earphones adapted to control Apple and Android.
