The Koleer H37 Wireless Bluetooth Speaker delivers powerful, clear audio in a compact and stylish portable design, making it perfect for music at home, outdoor gatherings, or travel. Equipped with Bluetooth 5.4 technology, it provides stable wireless connectivity with a range of up to 10 meters, while dual full-range drivers produce balanced sound with strong bass and clear highs. The built-in rechargeable 1200mAh battery offers up to 8 hours of playback, and multiple playback options including Bluetooth, USB, Micro SD (TF) card, FM radio, and AUX input give you flexible ways to enjoy your music. With a built-in microphone for hands-free calls and convenient USB Type-C charging, the Koleer H37 is a reliable portable speaker designed for everyday entertainment.

Key Features:

• Bluetooth 5.4 wireless connectivity with up to 10m range
• 7W output power with dual full-range drivers for clear, balanced sound
• Multiple playback modes: Bluetooth, USB drive, TF/Micro SD card, FM radio, and AUX input
• Built-in microphone for hands-free calling
• 1200mAh rechargeable battery with up to 2–8 hours playback
• USB Type-C charging with approximately 2.2 hour recharge time
• Compact and portable design ideal for home, travel, and outdoor use
• Compatible with smartphones, tablets, laptops, and desktop devices