The Green Lion Echo Max Headphones in black and orange are splendid in sound and predictability

• Frequency Range: 20 Hz 20 kHz
• Magnet Size: 40 mm
• Built-In Microphone
• Bluetooth: 5.3
• Impedance: 32
• Headset Sensitivity: 102 dB 3 dB
• Signal/Noise Ratio: 90 dB
• Integrated Battery: Lithium-ion Polymer 3.7V 500 mAh
• Charging: USB-C / USB-A Cable Included
• Up to 48 Hours (50% Volume) Playtime