Water proof
Could be put into wash machine
With WOVEN BAND
Could use for MP3/4 player
3.5mm plug headphones

Driver unit: 10mm speaker
Impedance: 32ohms;
Frequency response: 20Hz to 20kHz
Sensitivity: 105dB (at 1kHz)
Input power: 50mW (maximum)
Plug type: 3.5mm stereo
Cord length: 1.2m