ISOtunes Pro Aware Ear Defenders are noise isolating in-ear buds with Bluetooth connectivity and exceptional levels of protection from high impact noise. Take calls and listen to music while wearing these innovative hearing protectors that feature a range of controls and ambient noise microphones that constantly measure noise levels and deliver attenuation performance when required. These dust, water and sweat resistant headphones are equipped with ear hooks for a secure fit and have a 10m/30ft operational range. The noise isolating buds take 2 to 3 hours to fully charge and can last up to 10 hours, depending on usage. SafeMax technology built in to the ear defenders provides outstanding audio quality while restricting the volume output to 79dBA. Available in Bright Green and in one size Wired ear defenders with Bluetooth connectivity Lightweight and water, dust and sweat resistant Up to 10 hours music streaming or talk time 10m/30ft operational range Comfort-fit ear hooks SafeMax technology for exceptional audio quality Volume output limited to 79 dBA Four pairs of Trilogy Foam ear tips tested for attenuation under EN352-2 for use in noisy environments Also included is one pair of silicone triple flanged ear tips for non-noisy environments Please note that, for hygiene reasons, in-ear hearing protection products cannot be returned once opened.