Compact, lightweight and rugged construction. – Easy operation, even for unskilled personnel. – Full marine-use VHF channels. – Designed to meet GMDSS requirements related with performance standards for survival craft two-way VHF radiotelephone apparatus, such as IMO M.149(77) [2003] and IEC 61097-12. – CCS type approval. SPECIFICATIONS Technical Specifications Frequency Range: 156.025 ~ 162.975MHz Operating Channels: _19 channels Operating Hours: _8 hours ( TX10%, RX10%, Standby80% ) Battery Requirements Battery Voltage: DC 7.2V Storage Temp.: -30__+70_ Storage Time: 4 years Dimension & Weight Dimension: 256(H) X 51.4(W) X 46.2(D) mm Weight: abt 400g (Transceiver+Emergency Battery)