**Product Specifications:**
**Brand:** ShiDu
**Model:** S92
**Description:** ShiDu S92 is a professional voice amplifier designed to relieve vocal strain and make teaching or public speaking easier. It features UHF dual wireless interactive amplification for a more engaging experience.
**Features:**
- Original sound amplification
- UHF dual wireless technology
- 5.0 cloud-controlled Bluetooth
- 25W high power output
- 20 hours of continuous use
- Intelligent noise reduction
- TF card and USB playback
- AUX audio input
**UHF Wireless Technology:**
- True UHF wireless connection
- Built-in UHF wireless receiver
- Automatic pairing upon startup
- Stable signal with anti-interference capability
- 40 frequency points for multi-device use without interference
- Transmission range of up to 50 meters
**Double Wireless:**
- Dual wireless transmission and reception technology
- Supports two interactive microphones for teaching interactions
- Extended battery life for prolonged use
**Beautiful Voice:**
- Dual 3.5-inch magnetic speakers for clear and powerful sound
- Dual-channel playback for enhanced audio quality
**Use for Long Time:**
- Customized 7.4V 2600mAh*2 lithium batteries for extended battery life
- Up to 20 hours of continuous use
**More Outstanding Features:**
- 5.0 cloud-controlled Bluetooth for synchronized teaching materials and music playback
- TF card and USB playback for English listening exercises
**Multi-Function View Panel:**
- Waterproof control panel with key wireless pairing
- Dust-proof interface
- Real-time battery level indicator
**Wireless Microphone Options:**
- U8 Headset Microphone
- U2 Waist-hanging Microphone
- U7 Collar Microphone
- U5 Handheld Microphone
**Customized Portable Storage Bag:**
- Shockproof and spacious design for convenient storage
**Standard Fittings:**
- Handheld + Waist-hanging version
**Warranty and Accessories:**
- 1-year warranty for the main unit
- Accessories include charger, belt, data cable, audio cable, and various microphone options
**Optional Packages:**
- Contact customer service for additional package options
Please note that the specifications provided are subject to change and for reference purposes only.