Yealink UH38 User Manual

Contents
About This Guide........................................................................................ 3
Hardware Overview......................................................................................3
Package List........................................................................................................................................ 4
Headset Buttons.................................................................................................................................. 5
Busylight Indicator............................................................................................................................... 6
Mobile/PC Button Indicator..................................................................................................................6
Teams/Voice Assistant Indicator..........................................................................................................7
UH38 Headset Connection..........................................................................7
Connecting to PC/Yealink IP Phone via the USB Cable.....................................................................7
Connecting to Mobile Device via Bluetooth........................................................................................ 8
Disable Bluetooth.................................................................................................................................8
Headset Wear............................................................................................... 8
Left or Right Wearing Style.................................................................................................................8
Adjusting the Microphone....................................................................................................................9
Clip the Microphone Cable on Clothes............................................................................................. 10
Headset Usage........................................................................................... 10
Status Check..................................................................................................................................... 10
Basic Call and Music........................................................................................................................ 11
Mute Usage....................................................................................................................................... 13
Multiple Calls..................................................................................................................................... 13
Recovery Factory Setting......................................................................... 14
Yealink USB Connect................................................................................ 14
Firmware Update............................................................................................................................... 15
FAQ.............................................................................................................. 16

Yealink UH38 Specifications

General

Cable length	0.8 m
Headset type	Monaural
Product type	Headset
Certification	FCC
Product color	Black
Wearing style	Handheld
LED indicators	Yes
Operating keys	Answer/end call, Mute, Reject call, Volume +, Volume -
Control unit type	In-line control unit
Recommended usage	Calls/Music
Compatible products	T41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/ T53/T53W/T54W/T57W/T58A/VP5
Storage temperature (T-T)	-5 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Sustainability certificates	CE
USB connector	USB Type-A
Wireless range	10 m
Bluetooth version	5.1
Connectivity technology	Wired & Wireless
Impedance	32 Ω
Driver unit	35 mm
Ear coupling	Supraaural
Headphone frequency	20 - 20000 Hz
Maximum input power	10 mW
Headphone sensitivity	115 dB
Microphone type	Built-in
Microphone frequency	100 - 14000 Hz
Microphone sensitivity	-44 dB
Microphone direction type	Unidirectional

Weight and Dimensions

Weight	110 g