Basic specifications: Reception frequency: 535 KHz - 1605 KHz; Reception method: Reflex method; Output: Dynamic earphones (sold separately); Antenna: Bar antenna; Power supply: AA battery x 1; Battery life: Approx. 500 hours (approximately 2,000 mAH/4 mA for alkaline batteries); Size: W 70 x H 90 x D 24 mm (D 24 mm (excluding protrusions). Approx. 2.8 oz (80 g). (Excluding batteries) Operating temperature: 32 - 104°F (0 - 40°C) (without condensation); Package contents: Complete kit parts / parts list; Sold separately: Dynamic earphones, soldering iron, nipper, drill; Country of origin: Made in Japan; Note: Dynamic earphones and batteries are required for the operation of this product. ·In any case for damages arising to our liability for the manufacture and use of this kit, we will liable for any damages to the customer as limited as direct damage and will not be liable for any damage over the sale fee. Other product names and company names listed are generally registered trademarks or trademarks of their respective companies. Product specifications may change without prior notice in order to make improvements. Thank you for your understanding.