H. J. Electronics manufactures headset for telephone and wireless operators. These light weight hands-free headphones are developed to suit Indian conditions and various types of EPABX telephones and wireless networks. Where there is no P & T connections, the head-sets are used for communicating from one point to another on two wire pair and a single battery. These are used by crane operator's tractor-trailer operators, miners and in defense where wireless networks do not work. The ...