Feature 1, Dual USB expansion plus type-c fast charging. 2, One key answer, hands-free call, double click the button to call the most recent call in the call log. 3, Bluetooth call, support for voice broadcast of mainstream map APP navigation and QQ/ WeChat other software language playback functions 4, Support external TF card/U disk, support to play lossless APE extension MP3 music. 5, Bluetooth 4.0, support Bluetooth handsfree calls, music transmission.Features: Bluetooth 4.0, support Bluetooth handsfree calls, music transmission. Support external TF card/U disk, support to play lossless APE extension MP3 music. Bluetooth call, support for voice broadcast of mainstream map APP navigation and QQ/ WeChat other software language playback functions One key answer, hands-free call, double click the button to call the most recent call in the call log. Dual USB expansion plus type-c fast charging. Support folder play function. Support automatic power-off memory function. Support real-time car battery voltage detection, voice reminder, intelligent digital display, more safe to use. Small portable and exquisite appearance, universal fitment for 12-24V vehicles. Specification: Material: ABS Color: Black USB output voltage: DC/5V Dual USB output current: 3.6A (MAX) Bluetooth version: Bluetooth 4.2 Effective distance: about 5M Launch distance: <5M Support TF card / U disk capacity: 32GB (TF card and U disk not included) Voltage detection range: 6-30V Power mode: cigarette lighter power supply Bit rate: 64-320KBPS Harmonic distortion: <0.05% FM: <0.1%) Signal to noise ratio: 85db (FM: 65db) File support type: MP3/WMA/APE/FLAC/WAV Weight: Approx.80g Package Included: 1 x Car MP3 Player