Features: Waterproof IP67 . Portable size, easy to carry and use. Stereo sound. Main function: hands-free input, audio input, etc. Description:Specifications: Model: C29 Power supplier: 3.7V 2200MA 18650 Output (RMS): 6W THD+N ≤10%（1KHZ/0db） Charge time / input voltage: About 3-4 hours /5V 1A Play time: About 10 hours volume80% Speaker specification: Diameter 45mm 4ohm /3W *2 Frequency response:120HZ-20KHZ S/N: ≥80dB Color: gray Material: ABSAluminum shell silica gel complian: CSR4.0 8635 transmission distance: ≥10M Main function: hands-free input, audio input, etc. Ingress Protection: IP67 Product size : 155*58*28mm Package included: 1 x Speaker 1 x audio cable 1 x USB Cable 1 x strap 1 x manual Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.

Waterproof 3.7V 2200MA Lithium Polymer Speaker CSR4.0 Hands-free