•  Authentic China Set 
• General Specifications:
• Dimensions (H x W x D): 6.3 x 4.5 x 9.5inches
• Weight: 275g
• Touch sensor
• Charge time: Approx. 4 Hours
• Usage time: Max 20 hours (NC ON), Max. 22 hours (NC OFF)
• Electret Condenser Microphone
• Frequency response (HZ): 4Hz-40,000Hz