📄 Product Description – Green Lion Echo Max Headphone
A comfortable wireless headphone designed for everyday use, featuring stable Bluetooth connectivity, a practical 10m range, built-in microphone for calls, and AUX support for wired listening, backed by a long-lasting battery.

⭐ Key Highlights of Green Lion Echo Max:
🔹 Connectivity – Bluetooth 5.3 for faster, stable pairing
🔹 Range – up to 10m
🔹 Frequency Range – 20Hz–20kHz
🔹 Driver/Magnet Size – 40mm
🔹 Impedance – 32Ω
🔹 Sensitivity – 102dB ± 3dB
🔹 Signal-to-Noise Ratio – 90dB
🔹 Battery – Lithium-ion Polymer 3.7V 500mAh
🔹 Playtime – up to 50 hours at 50% volume (Bluetooth mode)
🔹 Calls – built-in microphone for clearer calls
🔹 Wired Option – AUX support
🔹 Charging – USB-C (USB-A to USB-C cable)
🔹 Weight – 0.40kg

🎯 Closing paragraph
A solid pick if you want modern Bluetooth, long battery life, and the flexibility of AUX for everyday listening and travel.

⚠️ Important Note: Actual playtime varies depending on volume level, content type, and device conditions.