PSIER Bone Conduction Swimming Headphones — Bluetooth 5.4 + MP3, IPX8 Waterproof, 32GB, Up to 8H Playtime, Open-Ear Secure Fit for Running & Fitness

All-in-one audio for land or water: PSIER bone conduction headphones combine Bluetooth 5.4 wireless streaming with an internal MP3 player so you can use them with or without your phone. The built-in 32GB memory stores up to 4,000 songs, and a quick double-click switches between Bluetooth and MP3 modes. Bluetooth 5.4 supports ultra-low latency and can pair with two or more devices for easy switching. Designed for swimming and all-weather use: These open-ear headphones carry an IPX8 rating and can be submerged to two meters for up to one hour. For underwater listening, switch to MP3 mode—Bluetooth mode will not connect while submerged. The drivers and electronics are protected by a fully sealed coating for worry-free use in water. Comfort and safety during activity: The open-ear bone conduction design keeps your ears free so you stay aware of surroundings while running, training, or swimming. Soft, skin-friendly silicone cushions rest gently on the front of the ears for a comfortable, stable fit. An adjustable rope is included to customize head size and improve retention during movement. Battery and playback: Enjoy up to 8 hours of playtime per charge, whether streaming via Bluetooth or playing music from the internal MP3 library. Note: Change to MP3 mode before submerging; Bluetooth mode cannot connect underwater.