DeWalt DPG14CS EU Ear Defenders 31 SNR with FM / DAB+ Radio The DeWalt DPG14CS EU ear defenders are the ultimate solution for providing ear and sound protection, whilst being able to listen to your favourite radio stations or MP3 playback devices (via supplied AUX cable) at the same time! This device will help protect the wearer from noises that exceed safe levels. The DPG 14\'s come with an integrated DAB+ and FM radio antenna, as well as a 3.7 volt, rechargeable lithium-ion battery pack - charged by the USB charge cable supplied. Maximum comfort is maintained thanks to the padded headband and ear surrounds. They have an adjustable, steel bar headband construction allowing you to get the perfect fit. Supplied with integrated battery, USB charge cable and AUX male-to-male cable. FEATURES These deluxe ear defenders with built in radio receiver offer 31 SNR noise reduction The headband of the headphones is adjustable, so you can determine the size of the headphones yourself Maximum comfort thanks to foam cushions and padded headband Steel headband frame for long lasting endurance on site Listen to DAB+ or FM radio thanks to the built-in antenna The headphones also have an AUX (3.5mm stereo) input for device playback LCD back-lit display for easy radio service selection - even in bad light Equipped with 3.7v rechargeable lithium-ion battery & supplied with USB charge cable Adjustable volume knob doubles up as an on/off switch so you never waste battery life SPECIFICATION Battery Voltage: 3.7v Weight: 0.369 kg ATTENUATION DATA Frequency (Hz) 125 250 500 1000 2000 4000 8000 Mean Attenuation (dB) 20.9 22.0 28.3 31.4 36.2 42.6 37.7 Standard Deviation (dB) 3.4 2.5 2.9 2.0 2.5 3.6 4.6 APV (dB) 17.5 19.5 25.4 29.4 33.7 39.0 33.1 SOUND PRESSURE LEVEL Normal SPL (dB) approx. 70 75 80 85 90 Electrical Input Signal Level 20.9 22.0 28.3 31.4 36.2 Average (dBA) 3.4 2.5 2.9 2.0 2.5 Standard Deviation (dB) 17.5 19.5 25.4 29.4 33.7