Remax RB-S21 Wireless Bone Conduction Sports Neckband

The Remax RB-S21 Wireless Bone Conduction Sports Neckband is designed for sports, swimming, and active lifestyles. Featuring bone conduction audio technology, a lightweight 28g design, and flexible ear hooks with 360° bending, it offers a comfortable fit for workouts and outdoor activities.

With Bluetooth 6.0 connectivity and an IPX8 waterproof rating, the RB-S21 is suitable for swimming and intensive training. Its 190mAh battery provides up to 5 hours of music playback or talk time, while USB Type-C charging offers convenient power replenishment.

Specifications

• Model: RB-S21

• Brand: Remax

• Audio Technology: Bone Conduction

• Connectivity: Bluetooth 6.0

• Waterproof Rating: IPX8

• Waterproof Depth: Up to 2 meters (as specified)

• Battery Capacity: 190mAh

• Playback / Talk Time: Up to 5 hours

• Standby Time: Up to 100 hours

• Charging Interface: USB Type-C

• Charging Time: Approximately 1.5 hours

• Speaker Impedance: 8Ω ±15%

• Speaker Output Power: 500mW

• Design: Lightweight sports neckband with flexible, 360° bendable ear hooks