Outdoor Speakers for Christmas Gift 1.TF card, Line-in, ... headphones are inserted, the machine can send high-quality speakers and sound super loud music.3. Flashlight: Glare light , blinker ... USB high speed transmission10. Applicable to MP3, MP4, Laptop, PC, MD, Mobile phone, etc…all kinds of digital audio ... Other Flashlight Sport Speaker Recommendation: Hot Selling! Outdoor Speakers for Christmas Gift