... 3.5mm earphone output Airplane Design Mini Speaker with Micro SD/USB 1. Supports AUX output. 2. ... Support sound card reader device. 3. Horn specification: 4 Ω, 3w4. L196 × W83 × H52mm5. USB ... housing,hansfree,charger,battery,silicon protector,screen protector,usb data cable, memory card, card reader, ... problems. Airplane Design Mini Portable Speaker with Micro SD/USB