[Built-in ATSC tuner and FM radio：Rywob portable TV built-in ATSC digital TV tuner and FM radio it supports HD TV signal reception and local radio listening so you can enjoy a rich audio-visual experience at home or outdoors.Fm radio can listen to important information when emergency "Built-in 4000mAh Rechargeable Battery:Rywob TV has battery operated TV which provides long battery life ensuring that you dont need to charge frequently when traveling or camping and enjoy a longer-lasting entertainment experience" Multiple modes: Rywob portable TV equipped with many different input interfaces allows you to easily connect to a variety of devices such as game consoles and laptops expand your entertainment methods and enjoy a big-screen experience Built-in dual speakers: Rywob small portable TV built-in high-quality dual speaker system provides clear and loud sound effects enhances the viewing experience and makes every scene more immersive Tips:The strength of the antenna signal depends on the strength of the local signal towerPlacing the antenna near the window or outdoors will get stronger signal reception.If you have any questions please contact us we have professional engineers to solve your problems]