• Newly developed 40mm caliber high damping diaphragm speaker, 10 times magnetic NdFeB magnetic circuit system, so that the sound can be better controlled
• Bring powerful bass sound with just a small speaker
• IPX4 waterproof, can be used in bathrooms, kitchens and outdoors
• Small size, designed with a lanyard, easy to carry

Specification: 

• Model: SY-900
• Sound quality selection: Mono
• Speaker: Built-in speaker
• Signal-to-noise ratio: 50dB
• Rated voltage: 4.5V
• Rated power: 0.5W
• Rated frequency: 50HZ
• Material: ABS
• Band Frequency: AM: 530-1600KHZ, FM: 88-108MHZ
• Waterproof: IPX4 waterproof
• Battery: 3*1.5V AA batteries (not included)