Power supply voltage: DC 12 V AA alkaline batteries x 8 (*Do not use rechargeable batteries)
Output: 18 W (MAX)
Recording media: SD card, USB memory (FAT32 only), supports 4 - 32 GB.
Usage time: *8-10 hours
Operating temperature range: 0 ~ +50 ℃
External dimensions: Horn diameter approx. 9.1 inches (230 mm), length approx. 13.8 inches (350 mm) *excluding handle and protruding parts.
Product Weight: Approx. 6.9 oz (1,990 g) (including batteries)
Usage time is 20% of the time when the battery is turned on with new alkaline batteries. It may vary due to battery capacity, ambient noise, wind direction, and the presence of obstacles.