Multifunctional Digital Amplifier | Digital Chip Anti-Howling 2200mAh Ultra-Long 20-Hour Battery Life Supports USB Drive/TF Card Single Song Loop Teacher Microphone

📢 Clearer, louder sound! Nobixing's digital amplifier technology, say goodbye to harsh feedback
Lecturing or guiding for long periods, are you most afraid of your megaphone suddenly emitting a harsh, sharp squeal?
Nobixing's multi-functional digital amplifier uses a new digital frequency conversion amplifier chip, which significantly increases output power while maintaining high efficiency and power saving, effectively suppressing echo and noise. Coupled with a high-fidelity microphone and multi-functional audio playback, it provides teachers, tour guides, and sales personnel with a clear and stable amplification experience!
✨ 5 Core Technologies and Practical Advantages

• ⚡ Digital Frequency Conversion Amplifier Chip · Loud Sound, Power Saving, Feedback Suppression
  ⚬ Equipped with a professional-grade digital amplifier chip, it offers louder output and lower power consumption.
  ⚬ It has superior anti-feedback performance compared to similar amplification products, with minimal noise and stable, clear sound transmission.
  
• 🔋 2200mAh 18650 Large Capacity Lithium Battery · 20 Hours of Powerful Endurance
  ⚬ Built-in 2200mAh high-performance lithium battery, a single charge takes only 3 hours and can be used continuously for up to 20 hours (standby up to 72 hours).
  ⚬ Based on daily teaching frequency, it can be used for several days on a full charge without frequent recharging.
  
• 🎵 Supports USB Drive / TF Card Playback · Instantly Becomes a Portable Speaker
  ⚬ The device features dual slots for USB drives and TF memory cards; simply insert a card to play music, audio teaching materials, or pre-recorded broadcasts.
  ⚬ Supports single-track loop playback mode, convenient for repeated playback of classroom materials or continuous broadcasting for store promotions.
  
• 🎙️ High-Fidelity Microphone + Double-Layer Anti-Pull PVC Cable
  ⚬ Uses a 3.5mm high-strength metal plug, providing excellent signal transmission and robust durability.
  ⚬ Paired with a double-layer PVC protected cable, significantly enhancing anti-pull capability; the microphone conforms to ergonomics, providing no pressure even with long-term wear.
  
• 🎒 200g Lightweight Rubber Paint Body · Two-Way Belt for Hanging
  ⚬ The entire unit weighs only 200g, and the body is made of skin-friendly rubber spray paint + ABS material, offering a delicate texture and wear resistance.
  ⚬ The back of the unit has a built-in metal back clip, and a detachable adjustable metal buckle belt is included, making it convenient for cross-body or waist-hanging.
  

🏫 Suitable for Diverse Scenarios
Applicable to: school teaching lectures, tour guide explanations, store promotions, dance and yoga instruction, conference training, and listening to opera for the elderly, etc.