HS-M21 AI / HS-D21 AI Series

Noise cancelling headset for call centers

Excellent Sound Quality

We use a HD NdFeB magnet wideband audio speaker which is designed for human voice frequency, delivering crystal clear sound and richer intonation.

Hearing Protection

Advanced audio technology removes loud sounds above 118dB to protect your hearing.

Intuit inline control & 3CX Ready

Easy to use in-line control and 3CX compatible meet all your unified communication requirements!

Comfortable and easy to use

Soft foam cushion and dynamic fit design ear pad to provide the most comfortable feeling of wearing.

AI Noise Cancelling

Two microphones are used and Smart Voice Capture technology are applied to ensure 99% noise cancelling, Dual Microphone Array is used.

Specifications

	Model	HS-M21 AI	HS-D21 AI
Audio Performance	Hearing Protection	118dBA SPL	118dBA SPL
	Speaker Size	Φ28	Φ28
	Speaker Max Input Power	50mW	50mW
	Speaker Sensitivity	107±3dB	107±3dB
	Speaker Frequency Range	100Hz~6.8KHz	100Hz~6.8KHz
	Microphone Directionality	ENC Dual Mic Array, Omni-directional	ENC Dual Mic Array, Omni-directional
	Microphone Sensitivity	-40±3dB@1KHz	-40±3dB@1KHz
	Microphone Frequency Range	100Hz~8KHz	100Hz~8KHz
Call Control	Call answer/end, Mute, Volume +/-	YES	YES
Wearing	Wearing Style	Over-the-head	Over-the-head
	Mic Boom Rotatable Angle	320˚	320˚
	Flexible Mic Boom	Yes	Yes
	Headband	Silicon Pad	Silicon Pad
	Ear Cushion	Protein leather	Protein leather
Connectivity	Connects to	Desk phone, PC/Laptop Softphone	Desk phone, PC/Laptop Softphone
	Connector Type	USB-A	USB-A *supports USB-C
	Cable Length	210cm	210cm
General	Package Content	Mono USB Headset, User Manual, Cloth clip	Duo USB Headset, User Manual, Cloth clip
	Gift Box Size	190mm153mm40mm	190mm153mm40mm
	Weight	102g	122g
	Certifications	CAN ICES-003(B)/NMB-003(B)	CAN ICES-003(B)/NMB-003(B)
	Working Temperature	-5˚C~45˚C	-5˚C~45˚C
	Warranty	24 months	24 months