Halo Car MP3 Bluetooth Player Car Charger Car FM Transmitter 3.1A Car Charger(Elegant Black)

Specification:
1. Material: ABS, aluminum alloy
2. Application: common to all 5V electronic digital products
3. Input voltage: 12-24V
4. Output voltage: 5V
5. Charging current: 3000mA
6. Interface: dual USB
7. Digital display: voltage test, FM frequency
7. Size: 6.5x3.2 cm
8. Weight: about 25 grams

Features:
1. Indication: LED display, real-time monitoring of battery voltage and charging voltage and current
2. Brand new design, dual USB full output, private mold, safe and environmentally friendly Bluetooth receiver, U disk player, FM simultaneous reception and playback
3. Interface: dual USB ports work at the same time, can charge multiple devices at the same time