Acer Wireless Earphone with Open Back Design

Features:

• Speaker Diameter: Φ14.2mm
• Speaker Impedance: 32Ω±15%
• Frequency Range：20Hz-20kHz
• Sensitivity：100±3dB
• Headphone Capacity: 55mAh*2
• Charging Bin: 400mAh
• Charging Port: Type-C
• Color: Black, White