Description: This HiFi earphone module is designed to upgrade your wired earphone to a wireless earphone. This earphone upgrade module can provide a fast and stable signal and is convenient to pair and connect. This wireless earphone upgrade cable can provide good sound quality as a wired does. This headphone wireless module features a one-button control design, and is easy to operate. This earphone wireless module is convenient to wear and is not easy to drop. Specifications: Bluetooth-compatible version: 5.2. Range: 15m. Material: ABS. Color: Black. Battery: Earphone: 50mA(Built-in), charging case: 800mA(Built-in). Suitable earphone: C type:Zsx, zsn, zsn pro, zs10 pro, as12, as16, zsn pro x, zax, asx, dq6. B type: Zst, zsr, zs10, as10, ba10, ed12, es3, es4, zst x, as06, edx. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1x Earphone wireless module.