• Charging: USB C / USB A cable included • Autonomy: 50 hours at 50% of the max volume in Bluetooth mode • Integrated battery: Lithium ion polymer 3.7V 500 mAh • Headset sensitivity : 102 dB + 3 dB • Frequency range: 20Hz 20kHz • Signal/noise ratio : 90 dB • Maximum range: 10m • Impedance: 32Ω • Bluetooth: V 5.3
The Green Lion Echo Max Headphones in black and orange are splendid in sound and predictability. The Bluetooth 5.3 ensures a maximum range of 10 meters and a good frequency quality ranging from 20 Hz to 20 kHz for a refined sound. The 40 mm magnets with 32Ω provide a potentially balanced audio signal, while 102 dB of sensitivity allows for significant levels of clear, full audio. The 500 mAh lithium-ion battery lasts in Bluetooth mode for 50 hours on an average of 50% of its volume. It also has other features: a built-in mic, 48-hour playtime, and USB-C/USB-A charging for use.