Sentry HPXBTA2000 Active Noise Canceling BT Headphone

Active Noise Canceling Bluetooth Headphone
Features:
Bluetooth Wireless Listening
Extra soft noise reduction ear pads
In-line microphone
Control Buttons
Specifications:
Driver Unit: 40mm 
Frequency: 20Hz- 20KHz 
Sensitivity: 103d B+ / - 3 d B
Impedance: 32+/- 3 Ohms
Bluetooth: Version 5.3
UPC: 080068520009
Inner case: 5
Master case: 10