Self-charging hearing protection complying with EN 352. Solar panel changes external light into clean energy. Made of recycled materials. With Bluetooth Multi-Point technology for connecting up to two external devices. Stable and high resolution audio transmission also through Bluetooth. Hands-free telephoning and music streaming. Noise suppressing microphone. External microphone amplifies relevant quiet sounds in the surroundings. WAP mode with pre-installed audio profiles or classic mode for manual adjustment of ambient monitoring. Push-to-Listen feature for immediate switch to ambient monitoring function. Control of all features possible with an app. Voice operated menu. Voice warning for low battery. Automatic switch-off after four hours' not in use. Large, user friendly buttons. Rechargeable lithium-ion battery. SNR value 30 dB. Weight circa 520 g (ready for use).