🔘 21-Key Functionality – Full control at your fingertips
⚡ High-Quality Build – Durable and reliable remote
📡 38kHz IR Signal – Standard for Arduino IR decoding
🔋 Battery Included – Ready for immediate use
🛠️ Arduino Programmable – Can be coded for custom functions
🎨 Compact Design – Easy to handle and store
💎 Interactive Project Friendly – Perfect for robots and gadgets
📦 Brand New – Guaranteed quality
🔧 Versatile Applications – MP3 kits, DIY electronics, robotics
🎯 Easy to Integrate – Works seamlessly with standard IR receivers

• 1. Double decoding supports music in MP3/WMA/WAV format;
• 2. Support Bluetooth function;
• 3, with digital tube display;
• 4, support MMC / SD / MMA and other cards, support USB interface (U disk);
• 5, power failure memory function 24C02;
• 6, support 5-10 meters distance infrared remote control operation;
• 7, support for external audio input LINE IN (AUX);
• 8, support radio FM, receiving frequency band (87.5MHZ-108.0MHZ);
• 9, button: four buttons multi-directional control, MODE / previous song / play / pause / next song;

• 100% brand new and high quality
• No input state, you almost can not hear the noise when your ears closed to the speaker.
• Excellent sound quality
• The board needs to install the appropriate size of the Heat sink (should not be less than 300g)
• Out Speaker: 4 ~ 8Ω, (4ohm better for double output)
• Power output: 45W+45W+45W+45W
• DC Power Supply: 12V at least 8A
• Board Size: 9cm x 5cm
• Quantity:1Set

• 🟢 2.1 Channel Amplifier – Dedicated left, right, and subwoofer channels for complete sound systems.
  🔵 TDA2050 Audio Chip – High-quality amplifier IC used for clear and detailed stereo sound.
  🟡 Powerful Bass Section – D1047 transistor drives the subwoofer for deep and punchy bass.
  🟣 NJM4558 Low Pass Filter – Enhances low frequency response and improves bass performance.
  🟠 Dual Transformer Support – Works with 15-0-15V AC or 24-0-24V AC transformer supply.
  🔷 High Efficiency Design – Provides over 90% power efficiency with stable performance.
  ⚙ Perfect for DIY Audio Projects – Ideal for home theater, subwoofer systems, and amplifier builds.

🔊 Powerful 19W+19W Output – Strong stereo sound performance
🎧 BTL Amplifier Design – Enhanced power and efficiency
💎 High Sound Quality – Clear highs, smooth mids, deep bass
🔇 Low Noise Output – Near-silent background noise
⚡ 12V DC Operation – Ideal for car and portable setups
🛠️ DIY Kit Design – Perfect for electronics enthusiasts
🔥 Stable Performance – No current shock on startup
📢 Wide Speaker Compatibility – Supports 4Ω to 8Ω speakers
⚠️ Heatsink Required – Ensures safe and long-lasting use
🔧 Custom Build Flexibility – Add your own ICs and cooling setup
💼 Compact Board – Easy to integrate into projects

🔊 Powerful 45W Output – Strong and clear sound performance
⚡ Class AB Amplifier – Balanced quality & efficiency
📢 Wide Speaker Compatibility – Supports 4Ω to 8Ω speakers
🎶 Clean Audio Output – Low distortion sound
🔋 High Efficiency (>80%) – Better power utilization
🛠️ DIY Friendly Design – Easy to integrate in projects
📦 Compact Board Size – Fits in custom enclosures
💎 Reliable Performance – Stable and durable circuit