切换导航
首页
关于我们
公司简介
发展历程
企业文化
企业荣誉
产品中心
安防监控视频
Watashi
Optical Transceiver
LED Monitor
PoE Switch
RJ45 Patch Cord
Coaxial Cable
CCTV Power Supply
Power Adaptor
Wi-Fi Camera
Watashi IoT
Accessories
HOLOWITS
Network Video Recorder
Network Camera
PT Series & PTZ Network Camera
HUAWEI NVR & Network Camera
Analog HD Video Recorder
Analog Camera
Uniview
Network Video Recorder
Network Camera
Fisheye & PanoVu Network Camera
4G, PT Series & PTZ Network Camera
Digital Video Recorder
Analog Camera
PT Series & PTZ Turbo HD Camera
Wired & Wi-Fi Camera Kit
Disk Enclosure & Surveillance HDD
Memory Card
Network Switches
Network Cable
Decoder
Network Control Keyboard
Smart Interactive Display & Monitors
Audio & Video Conference
Video Intercom
Other Device & Accessories
Uniarch
Wi-Fi Camera
ZKTeco
Time Attendance Terminal
Access Control Panel Terminal
Standalone Access Control Terminal
Elevator Control
Reader
Smart Security Gate
Parking Barrier
Smart Gate Opener
Security Inspection
Residential Lock
Video Intercom
Hotel Lock Solution
Interactive Digital Board & FaceKiosk
POS System & Periphearal
PVC Card Printer
4G, PT, PTZ & Network Camera
DVR & HD Analog Camera
PoE Switch
Network Cable
Accessories
Hikvision
Network Video Recorder
Network Camera
PanoVu, Thermal & ANPR Intelligent Entrance Networ
4G, PT Series & PTZ Network Camera
Digital Video Recorder
Turbo HD Camera
PT Series & PTZ Turbo HD Camera
Dash Camera
Surveillance HDD
Network Switches
Network Cable
Decoder
Digital Signage & CCTV Monitor
Audio & Video Conference
Video Intercom
Wireless Bridge
Other Device & Accessories
EZVIZ
4G/5G & Solar Camera
Outdoor Wi-Fi Camera
Indoor Wi-Fi Camera
Network Video Recorder
Memory Card
Smart Home
ITC
PA Amplifier
PA Speaker
IP PA/Intercom
Video & Audio Conference System
Professional Audio
Peripheral Device
SriHome
Wi-Fi Camera
4G/5G Camera
Botslab
Wi-Fi Camera
Dash Camera
Arenti
Wi-Fi Camera
SKYWORTH
Outdoor Security Camera
Indoor Security Camera
SHiKE
Alarm System Controller
Detector & Accessories
4G/5G & Solar Camera
4G Camera
Solar Camera
Accessories
Surveillance HDD
Seagate Surveillance HDD
WD Surveillance HDD
Security Product & Accessories
Coaxial Cable
BNC Connector
CCTV Power Supply
CCTV Power Adaptor
Wi-Fi & Networking
HUAWEI
Intelligent Collaboration Product
Multi-Service Gateway
Enterprise Router
5G/4G LTE Router
L3/L2 Managed Switch
PoE Switch
Unmanaged Switch
WAC Controller
Access Point
Ruijie/Reyee
L3/L2 Managed Switch
L3/L2 Managed PoE Switch
PoE Switch
Unmanaged Switch
NBR Series Router
EG Series Router
Celling-mount Access Point
Outdoor Access Point
Wall-mount Access Point
Ruijie Wireless Access Controller
Ruijie Wireless Access Point
Wireless Bridge
Home Wi-Fi Router
Home Wi-Fi Mesh Router
Home Wi-Fi Extender
Accessories
TP-Link
L3/L2 Managed Switch
PoE Smart Switch
PoE Switch
Unmanaged Switch
Home Wi-Fi Router
3G/4G/5G Router
Home Mesh Wi-Fi
Access Point & Controller
Range Extender
PCIe Adapter & USB Adapter
Accessories
TOTEN
Rack Cabinet
Accessories
Wi-Tek
L3/L2 Managed Switch
PoE Switch
Wi-Fi Mesh Router
Gateway & AP Controller
Cloud Access Point
Fiber Media Converter
UniFi
POTEL
RJ45 Network Cable
Audio Line
Fiber Optic Cable
Networking Accessories
ATECH
RJ45 Network Cable
Universal Toner Refill Powder
Computer/Bluetooth Multimedia Speaker
Computer Power Supply
AC/DC Power Adapter
CCTV Power Supply
AMPLO
RJ45 Network Cable
RJ45 Network Connector
IP Phone System
IP PBX System
Wired & Wi-Fi IP Phone
LTE & Wi-Fi IP Phone
Networking Accessories
RJ45 Network Cable
RJ11 Telephone Cable
RJ45, RJ11 & K1 Wire Splice Connector
RJ45 Coupler Connector & RJ45 Strain Relief Boots
RJ45 & RJ11 Crimping Tool
Network & Telephone Cable Tester
Rack Cabinet Cable Management & Nylon Cable Tie
电脑设备及周边耗材
POWER T
Online UPS
Offline UPS
Battery UPS
StarInk
Laser Toner Cartridge
Universal Refill Toner Powder
Refill Ink Bottle
COLORFUL
Motherboard
Graphics Card
2.5” SATA SSD
PCIe NVMe M.2 SSD
RAM
Speaker & Headset
Segotep
Power Supply
Computer Case
CPU Cooling Fan
Chassis Fan
CENTURY STAR
Power Supply
Computer Case
Chassis Fan
APOINT
Wired Keyboard & Mouse Combo
Wired Keyboard
Wired Mouse
Wireless Mouse
HP
Mechanical Gaming Keyboard
Gaming Mouse
Stereo Headset
Earphone
Multimedia Speaker
Desktop Microphone
USB Flash Drive
HDMI Cable
HDMI Switcher
HDMI to VGA Adapter
USB to Ethernet Adapter
JEDEL
Mechanical Gaming Keyboard
Wired Keyboard
Gaming Mouse
Wired Mouse
Wireless Mouse
Bluetooth Mouse
Stereo Headset
Stereo Speaker
XTRIKE ME
Gaming Chair
Stereo Headset
Stereo Speaker
Streaming Microphone
Laptop Cooling Pad
Wired Keyboard & Mouse Combo
Wireless Keyboard & Mouse Combo
Mechanical Gaming Keyboard
Wired Keyboard
Bluetooth Keyboard
Wired Mouse
Gaming Mouse
Wireless Mouse
Bluetooth Mouse
Mouse Pad
AULA
Wired Keyboard & Mouse Combo
Mechanical Gaming Keyboard
Wired Keyboard
Bluetooth Keyboard
Gaming Mouse
Wired Mouse
Wireless Mouse
Bluetooth Mouse
Gaming Stereo Headset
Desktop & Gaming Speaker
FD
Wireless Keyboard & Mouse Combo
Mechanical Gaming Keyboard
Bluetooth Keyboard
Wired Mouse
Wireless Mouse
Bluetooth Mouse
Lecoo
Gaming Mouse
Wired Mouse
Wireless Mouse
Wireless Earbuds
Wired Earphone
Desktop Speaker
Wireless Presenter
HAVIT
Wired Keyboard & Mouse Combo
Wireless Keyboard & Mouse Combo
Mechanical Gaming Keyboard
Wired Keyboard
Wireless Keyboard
Gaming Mouse
Wired Mouse
Wireless Mouse
Laptop Cooling Pad
Gaming Stereo Headset & Earbuds
Desktop & Gaming Speaker
Streaming Microphone
Phone Accessories
Other
M-PARD
HDMI Cable
HDMI Extender, Splitter, Switch, KVM, Converter &
DisplayPort Cable, Converter & Adapter
VGA Cable
VGA Splitter, Switch, KVM, Converter & Adapter
DVI Cable, Converter & Adapter
USB Cable & Extension
USB Hub, Converter, Adapter & Switch
Audio Cable & Extension
RJ45 Cable & Connector
DTECH
HDMI Cable
HDMI Extender, Splitter, Switch, KVM, Converter &
DisplayPort Cable, Converter & Adapter
VGA Cable
VGA Splitter, Switch, KVM, Converter & Adapter
DVI Cable, Converter & Adapter
USB Cable & Extension
USB Hub, Converter, Adapter & Switch
UNITEK
HDMI Cable
HDMI Extender, Splitter, Switch, KVM, Converter &
DisplayPort Cable, Converter & Adapter
VGA Cable
VGA Splitter, Switch, KVM, Converter & Adapter
DVI Cable, Converter & Adapter
USB Cable & Extension
USB Hub, Converter, Adapter & Switch
Audio Cable, Extension & Converter
RJ45 Cable & Connector
Z-TEK
HDMI Cable
HDMI Splitter, KVM & Switch
Wireless Screen Projector
USB Cable
USB Extender, Hub & Switch
Converter & Connector
BYZ
Headphone, Earphone & Earbuds
Audio Cable & Converter
Cell Phone Charger & Power Adapter
Power Bank
Cell Phone Accessories & Other
RONGTA
Thermal Receipt Printer
Label Printer
Mobile Printer & POS Terminal
Thermal Paper Roll & Accessories
Laptop Adaptor & Charger Station
Dell
Acer
Asus
Lenovo
HP
Toshiba
Sony
Samsung
Apple MacBook
Speaker, LCD Monitor & Other Adapter
Universal Power Adaptor
Car Charger Universal Power Adaptor
USB Charger Station
HPC
LED Monitor
Other Brand of Computer Accessories & Peripheral
JAVODA
FJGEAR
Onten
R8
JINGHUA
Lemorele
NETLINE
专业音响
BDSOUND
Professional Audio Mixer
Professional Power Amplifier
Professional Audio Processor
Subwoofer
Professional Speaker
Wired, Wireless & Handheld Microphone
Audio Rack Cabinet
Power Controller
Accessories
C.O.K
Conference Microphone System
Wired, Wireless & Handheld Microphone
Stereo Headset
Solar LED Light
Solar Panel
DSPPA
PA Amplifier
PA Speaker
SHENGYOU
Bluetooth Speaker
aiwa
Bluetooth Speaker
Kisonli
Desktop Speaker
Bluetooth Speaker
Mobile Phone Holder Speaker
HOTMAI
Bluetooth Speaker
Desktop Speaker
SHIDU
UHF Wireless Voice Amplifier
2.4G Wireless Voice Amplifier
Wired Voice Amplifier
Speaker Cable & Accessories
技术支持
下载中心
软件下载
硬件下载
产品资源
服务政策
售后服务
解决方案
城市交通
政府行业
金融行业
能源电信
文化教育
合作客户
代理品牌
经销品牌
自主品牌
新闻资讯
联系我们
联系方式
加入我们
语言选择
中文
English
SEARCH
安防监控视频
Wi-Fi & Networking
电脑设备及周边耗材
专业音响
SHIDU S298-B Wired Voice Amplifier with Microphone 10W Power for Teacher
关于我们
公司简介
发展历程
企业文化
企业荣誉
产品中心
安防监控视频
Wi-Fi & Networking
电脑设备及周边耗材
专业音响
技术支持
下载中心
服务政策
售后服务
解决方案
城市交通
政府行业
金融行业
能源电信
文化教育
智能建筑
联系我们
联系方式
加入我们
如果您需要什么，请留下您的联系信息
