182619 Features: 1. With anti-theft function. When it is shook， 6 sounds alarms in turn， which adds car searching and overtaking alarm function. 2. Support TF card to play MP3 music and FM. 3. Support power off memory play and it plays previous music when you turn it on. 4. Waterproof aluminum alloy host. The host has 3 buttons， which makes it easier to operate. Technical parameters: 1. Working voltage: 12V 2. Sound channel: 2 sound channel (stereophonic) 3. FM radio frequency: 87.5-108.0MHz 4. Supported SD card capacity: 128MB-4GB 5. Horn alarm volume: 125dB Color: Black Material: aluminum alloy Main engine size: about 95 x 65 x 23 mm Speaker size: about 90 x 77 x 72 mm Package size: about 155 x 100 x 100 mm 1 x Main engine 1 x Remote control 2 x Speaker 8 x Set screws 2 x Fixed iron plates 1 x User manual In original package