Notification: 1. Please make sure the HDMI cable be not too long , over 1.5 M long the signal would be poor 2. You should make sure that the TV had RCA cable, some TV like Apple TV, Sony TV etc, that is so senior, There is no RCA insert Jack Due to electronic device , many issue cause the compatibility when you use the adapter, Please directly Email us. For working well, Still Need one HDMI cable that connect HDMI cable to the signal source of device. Then please use 3 RCA cable to connect HDMI adapter to old TV based on RCA cable's plug connect Specifications Type:HDMI to AV RCA Converter Input HDMI Signals format:480P(60Hz),576P(50Hz),720P(50Hz/60Hz)1080P(50Hz/60Hz) Output video format: PAL,NTSC Output video signal impedance: 75? HDMI version: HDMI 1.3 Power: DC5V Work temperature:-25?-75? Work humidity:10%-60% dimension:66 * 55 * 20mm Color: White Condition: New Package includes 1 x Mini HDMI to AV Converter 1 x USB Cable 1 x User Manual Notice:This adapter is HDMI to RCA, Not AV-HDMI, please make sure for it before your purchasing.Very thanks for your support!