This unit does not guarantee the safety underwater. Underwater Two Way Radio [Logosease] Do not use the unit in the condition which will cause immediate danger if conversation is stopped. Also do not use it for emergency contact as main purpose.
Using Logosease with a hood] Using Logosease with a store-bought hood together is not recommended. Make sure to wear the hood specialized for Logosease (sold separately) when you use a hood. In setting the unit with a store-bought hood, setting a microphone outside on the hood causes difficulty in collecting bone conduction sounds, and the sound becomes smaller.
IMPORTANT: Before actually start speaking underwater,,, please practice speaking with a regulator in your mouth at the beginning. Speech Training Sheet Points of Conversation Training Tap lightly. Read a sentence slowly for three times This sheet is waterproof. You can use it underwater. To get accustomed the conversation underwater smoothly, Sample sentences for speech training This sheet is to practice underwater conversation...
The built-in battery is too old to work. Please contact the shop you bought the unit. Connect the USB cable to the battery charger and PC. The battery will be replaced by the manufacturer (Yamagata Casio Co., Ltd.) Set the unit at the battery charger. Push it until you hear the "click".
Outer package Size 89.0mm x 41.0mm x 44.8mm Weight 107g Max. water pressure Temperature in use 0 to 40C Audio section Microphone Bone conduction microphone Speaker Magnetic-type bone conduction speaker Ultrasound:32KHz, voice range: 4KHz SSB-AM system Communication section Frequencies * There is no law regulations for underwater ultrasound using in Japan. Antenna Ceramic piezoelectric element Transmission range...