Thank you for viewing. This is a brand new, unopened item. The following is a product description. IPX7 Waterproof Rugged Outdoor Bluetooth Speaker HW2 (Military Khaki) ■Bluetooth Version Bluetooth 5.0 ■Waterproof Performance IPX7 Fully Waterproof Standard ■Speaker Output 16W (8W+8W) + Passive Radiator ■Frequency Response 80Hz - 20KHz ■Profiles A2DP, AVRCP, HFP ■Operating Range Approximately 10m-30m ■Built-in Battery 3,600mAh: Lithium-ion battery ■Power Supply DC5V-1A: Power supply via Micro USB terminal ■External Input Ports MicroSD, AUX, Micro USB for charging ■Size Length 165.0mm x Width 78.6mm x Height 43.5mm ■Weight Approximately 357g ■Continuous Playback Time (Approximate) Approximately 4 hours at maximum volume, approximately 10 hours at 60% volume ※Longer playback is possible depending on the playback volume. ■Charging Time 4-5 hours (approximate from almost 0 battery capacity to full charge when new)