• 【Bone Conduction Technology】S4 earphones utilize advanced bone conduction technology for a unique audio experience that doesn't block your ears
• 【Open-Ear Design】The open-ear design allows for situational awareness, making it ideal for outdoor activities and running
• 【Long Battery Life】Enjoy over 5 hours of playtime on a single charge, with an impressive 70-hour standby time
• 【Water Resistant】IPX5 water resistance rating protects against sweat and light rain, perfect for workouts and outdoor use
• 【Bluetooth 5.3】Featuring the latest Bluetooth 5.3 technology for stable and long-range connectivity up to 10 meters
• 【Quick Charging】Conveniently charge via USB Type-C, with a full charge taking only 2 hours

Specifications:

• Chip Model: BK 3266
• Material: ABS+PC with rubber oil finish
• Water Resistance: IPX5
• Battery Capacity: 150mAh
• Charging Port: USB Type-C
• Charging Time: 2 hours
• Playtime: >5 hours
• Standby Time: 70 hours
• Bluetooth Version: 5.3
• Connection Range: >10 meters
• Speaker Type: Bone conduction transducer
• Frequency Response: 20Hz-20KHz
• Speaker Impedance: 8Ω
• Speaker Sensitivity: 88±3dB
• Input Current/Voltage: 5V/1A