CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type Battery shall not be exposed to excessive heat such as sunshine, fire, or the like Bluetooth 2402MHz – 2480MHz @9.27 dBm Headphone input: 5.0V, 300mA; Working temperature : 0‐45 degree Hereby, NEW AUDIO LLC. declares that the radio equipment type MH40‐W is in compliance with Directive 2014/53/EU and European Safety Regulations.