Children's radio, CD/MP3 player - Universal - Bone mp3 Bluetooth player (blue) Highlights Universal Bone mp3 Bluetooth player (blue) Bone mp3 Bluetooth player (blue) Product is shipped based on color or size of the main image of the product page. 2020 Bone Conduction K7 16GB MP3 Player Bluetooth 5.0 2 In 1 Headset Life Waterproof Running Fitness Sport Healthy Earphone | HiFi PlayersFeatures: don't need to insert ear, can enjoy music for a long time.Use bone conduction technology to transmit sound waves.For swimming/hot spring/sauna/spa/surfing/diving with snorkel.Protect your hearing and no harm to your eardrum.Perfect equipment for cyclists, hikers and more.Use anti-static material to ensure safety.