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Black and green waistband voice amplifier with wireless headset microphone

Shenzhen Shidu Digital Technology Co Ltd

Shenzhen Shidu Digital Technology Co Ltd M800 18W 4400mAh headset

SKU CH-WSG9-N8X7J

Portable 18 W voice amplifier with UHF wireless headset microphone, 4400 mAh battery and Bluetooth streaming for up to 65 people

  • ColorBlack/Green
  • 18W output covers 10000 sq.ft for 20–65 listeners
  • UHF wireless headset gives 20m hands-free mobility
  • 4400mAh battery runs amplifier 8–12 hours
  • Bluetooth streaming plus 3.5mm mic input for flexibility
  • Waterproof dust-proof drop-resistant waistband design for outdoors

Portable Voice Amplifier

The Shenzhen Shidu M800 is an all-in-one waistband voice amplifier with a wireless UHF headset microphone. It targets teachers, tour guides, coaches and outdoor presenters who need to project their voice across a group of 20 to 65 people in small or medium-sized rooms. The unit also functions as a Bluetooth speaker and mobile power bank.

Wireless Range and Battery Limits

The UHF wireless headset maintains a stable connection up to 20 metres or 65 feet in open areas, giving freedom to move around the room. The built-in 4400mAh lithium-ion battery powers the speaker for 8 to 12 hours, but the wireless headset microphone itself lasts only 2 to 4 hours per charge. Users needing longer sessions should consider a wired microphone or a 3.5mm lapel mic instead.

Output Capacity and Coverage

An 18W output drives sound coverage up to 10000 square feet, sufficient for audiences of 20 to 65 people in typical indoor spaces. Volume can be adjusted independently on both the speaker and the headset microphone using their respective controls. The device is waterproof, drop-resistant and dust-proof for outdoor durability, though it is not a substitute for a dedicated professional Bluetooth speaker.

Highlights

  • 18W output covers 10000 sq.ft for 20–65 listeners
  • UHF wireless headset gives 20m hands-free mobility
  • 4400mAh battery runs amplifier 8–12 hours
  • Bluetooth streaming plus 3.5mm mic input for flexibility
  • Waterproof dust-proof drop-resistant waistband design for outdoors

Specifications

BrandSHIDU
ColorBlack/Green

Questions about this item

Should I choose the wireless headset or the wired microphone option?

The wireless headset lasts 2-4 hours per charge; for longer sessions the supplier suggests the wired microphone or a 3.5mm lapel mic instead.

What does the 18W output mean for a class of 20-65 people?

18W drives sound across 10000 sq.ft so a medium or small room of 20-65 listeners hears clear, loud projection.

How does the UHF wireless link cap range in practice?

UHF transmission gives a stable 20m or 65ft connection in open areas, letting you move freely while speaking.

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