Dive into your favorite playlists with the Sanag B77S IPX8 Swimming Earphones. Utilizing advanced bone conduction technology, these waterproof Bluetooth headphones deliver clear, high-fidelity audio without blocking your ear canals, ensuring complete situational awareness. Equipped with a massive 64GB built-in memory to act as a standalone MP3 player and boasting up to 10 hours of extended battery life, they are the ultimate audio companion for swimmers, runners, and outdoor enthusiasts.
- IPX8 waterproof rating perfectly designed for underwater swimming and sports.
- Bone conduction vocalism principle ensures open-ear safety and comfort.
- Built-in 64GB memory acts as an independent MP3 player for phone-free listening.
- Provides an impressive 10 hours of continuous battery life on a single 180mAh charge.
- True Bone Conduction Audio: Bypasses the eardrum to transmit sound directly through your cheekbones, providing excellent audio while keeping your ears completely open to your surroundings for safety.
- IPX8 Waterproof & Swim-Ready: Fully sealed to achieve a rigorous IPX8 waterproof rating, allowing you to submerge the headset and confidently listen to music safely while swimming or doing intensive watersports.
- Standalone 64GB MP3 Player: Features an integrated memory drive with 64GB of storage space, letting you load up thousands of songs and leave your heavy smartphone safely behind in your locker.
- All-Day Endurance: Powered by an efficient 180mAh battery that delivers up to 10 solid hours of playback time, ensuring your music outlasts even your most grueling triathlon training sessions.
- Smart & Connected: Equipped with wireless Bluetooth technology with a <10m range, an integrated microphone for calls, dual connection capabilities, dedicated APP support, and Google Assistant compatibility for true hands-free control.
- Highly versatile functionality makes this headset ideal for a massive range of activities, including swimming, outdoor sports, flying, hunting, office work, and mobile gaming.
- Pairs effortlessly with any modern Bluetooth-enabled smartphone or tablet, maintaining a stable wireless connection up to 10 meters away.
- The lightweight, flexible silica gel and silicone construction provides a secure, ergonomic fit that won’t fall off during high-impact powersports or heavy gym routines.
- MP3 File Transfer: Utilize the included USB charging cable to connect the headphones directly to your laptop or PC, allowing you to easily drag and drop your favorite audio files onto the 64GB internal storage.
- Bluetooth Pairing: Ensure the headset is fully charged, then hold the main control button to enter Bluetooth pairing mode and seamlessly select the Sanag device on your mobile phone’s settings.
- Swimming Preparation: Before jumping into the pool, be sure to switch the device from Bluetooth mode to the internal MP3 player mode, as standard wireless signals cannot effectively travel underwater.
Product Specifications
| Brand Name / Origin | Sanag / Mainland China |
| Style / Category | Bone conduction headphones / Earphones & Headphones |
| Waterproof Rating | Yes (IPX8) |
| Material Composition | Silica Gel / Silicone |
| Battery Capacity / Life | 180 mAh / Up to 10 hours |
| Internal Storage | 64GB Memory (MP3 Player) |
| Wireless Range / Connectors | <10m (Bluetooth) / USB |
| Frequency / Impedance | 160 – 16000Hz / up to 32 Ω |
| Microphone / Controls | Yes / Volume Control, Control Button |
| Smart Features | Support APP, Google Assistant Support, Dual Connection |
| High-Concerned Chemical | None |
| Certification | weee |
Packing List
- 1 x Sanag B77S Bone Conduction Bluetooth Headphones
- 1 x USB Charging Cable
- 1 x User Manual
- Note: Specific colorway (e.g., Wind Chaser Gray) is determined by your selection at checkout.
Warnings & Safety Notes
- Bluetooth Limitations Underwater: While the headset is exceptionally rated at IPX8 waterproof, wireless Bluetooth technology naturally fails to transmit effectively through water. You must utilize the built-in 64GB MP3 memory when swimming.
- Charging Port Care: After exposing the silica gel headset to pool chemicals or saltwater, rinse it gently with fresh water and ensure the USB charging port is 100% dry before plugging it in to prevent hazardous electrical shorts.

