IPX8 Waterproof, 32GB Wireless Bone Headphones! Langsdom Opetec Swim 1 Bluetooth Bone Headphones with Built-in 32GB Memory Bluetooth 5.0 150mAh IPX8 Memory 32GB Dedicated to people who want to enjoy listening to music and safety na road at the same time. The headphones feature Bluetooth 5.3 technology, a built-in high-quality microphone and speaker. With a lightweight, sleek design, IPX8 waterproof features, they are great for jogging, mountaineering, hiking, swimming and other sports. Thanks to the special design, we can hear sounds from headphones as well as from the environment. It provides super-fast data transmission and stable performance. Compatible with almost all Bluetooth-enabled devices such as iPad iPhone, Samsung, Tablet PC, etc. Specification: Headphones: Opetec Swim 1, Bluetooth: 5.3 Frequency: 2.402-2.483GHz Working time: up to 11 hours Charging time: about 120 minutes, Type: Headphones with built-in MP3 player and for transmission via bluetooth, Charging and uploading music via magnetic cable included in the set, without unnecessary USB ports Battery capacity: 150mAh Weight: 32g Speaker diameter: Ø16,5mm Speaker Impedance: 8 Ω Speaker frequency: 20 - 20000 Hz Decibels: 86dB3dB Color: black, Wireless range: 10m, Waterproof IPX 8 rated. Microphone: yes, Noise reduction: yes, Bluetooth underwater or in close contact with water may not work, so for water sports you should drop music na built-in memory card. Do not submerge na depth below 1m. Contents of the set: Longsdom Opetec Swim 1 Bone Headphones, Magnetic cable, Box, Earplugs, User manual. Environmental awareness and safety With the Langsdom, you can hear your surroundings. The open design creates a much safer environment than earbuds, which isolate the user from the world around him. Comfortable listening Having nothing that could cover and compress the ears, the open design makes the opetec swim 1 headphones extremely comfortable to use for extended periods of time. **NO BUDDING OR UNPLUGGING CABLES** Built-in 32 GB memory Magnetic charging cable Up to 11 hours na one charge Waterproof Swimming Headphones Opetec Swim 1 headphones have an IPX8 waterproof rating – they are completely submersible to a depth of 1 m, whether na pool or lake. *Headphones should not be submerged in salt water. Salt contained in water can lead to degradation of seals and corrosion of charging pins. **After leaving the water, do not leave the headphones wet, dry them. To remove water from the built-in microphone, shake the headphones vigorously. Advanced technology The Bluetooth 5.3 connection offers a more stable connection and lower power consumption and interference-free playback na distance up to 10 m. With the built-in microphone you will have a smooth conversation, and noise reduction will take care of voice optimization and reduce crackling and other drilling sounds.