Silver 4GB Waterproof MP3 Player with 3.5mm Jack Earphone USB Port Description: This is silver 4GB waterproof MP3 player with 3.5mm jack earphone USB port Highlights:Compact， stylish and portable 100% waterproof design Made of durable and anti-scratches aluminum material Designed for you to enjoy your favorite music in the water freely Used for transferring your favorite music from the computer to this music player Come with a sports earphone， a USB cable， a silicone cylinder cover for this player， a cleaning cloth， an adjustable arm strap and a couple of soft ear buds Ideal for use when you go swimming， diving， surfing， do a water spa or other water sports Audio Format: Support MP3， WMA Waterproof: Yes Built-in Memory: 4GB Card slot: No Card attach: No Battery Type: Built-in Rechargeable Lithium-ion Battery Headphone Jack: 3.5mm plug Data Interface: USB interface Specification: Package details: Size: 16.4*10.5*3.6cm Weight: 140.17g Package included: 1 x MP3 Player 1 x Earphone 1 x USB Cable 1 x Arm strap 1 x Silicone cylinder cover 1 x User Manual 1 x Cleaning cloth 1 x Ear buds Detail Pictures: