Specification：Name: Parabolic Sonic Listening DeviceSound distance: Maximum 100 metersBuilt-in monocular: Magnification x8Digital recorder: 12 seconds (new files recorded over the last)Headphone jack: 3.5 mmColor: Black and transparentPower supply: 1x 9V battery (battery not included)Dimensions.Sound cannon: 17.5x28x5.5cm/6.89 "x11.02 "x2.17" (LxWxH)Soundproof disc: 25cm round 6cm (D) / 0.79" round 2.36" (D)Stereo headphones: Adjustable length 16cm~20cm/6.30"~7.87"Features：☀ 【suitable for children】This hearing device is a toy for children, it can stimulate their imagination and curiosity, help them explore nature, experience the colorful world and improve their sense of sight and hearing.☀ 【Special design and features】 Attractive design, 8x monocular telescope allows you to Specification：Name: Parabolic Sonic Listening DeviceSound distance: Maximum 100 metersBuilt-in monocular: Magnification x8Digital recorder: 12 seconds (new files recorded over the last)Headphone jack: 3.5 mmColor: Black and transparentPower supply: 1x 9V battery (battery not included)Dimensions.Sound cannon: 17.5x28x5.5cm/6.89 "x11.02 "x2.17" (LxWxH)Soundproof disc: 25cm round 6cm (D) / 0.79" round 2.36" (D)Stereo headphones: Adjustable length 16cm~20cm/6.30"~7.87" Features：☀ 【suitable for children】This hearing device is a toy for children, it can stimulate their imagination and curiosity, help them explore nature, experience the colorful world and improve their sense of sight and hearing.☀ 【Special design and features】 Attractive design, 8x monocular telescope allows you to see objects clearly and up close. Ergonomic design of the handle, just pull the on/off trigger, easy to operate with one hand.☀ 【9V Battery】For safe transportation, the hearing device does not contain any battery, you must purchase 9V battery to use the hearing device. ☀ 【Plastic cover】 The clear plastic cover is relatively fragile and may be damaged during shipping and delivery. If the plastic cover arrives damaged, please contact us and we will send you a replacement. Products include：1* desk spy bird recording observation device (batteries not included)1 * headphones1 * User manual Caution：Due to the difference between different monitors, the picture may not reflect the actual color of the item. Many thanks.