Nice for daily use and travel use, suitable for many occasions like watching TV, working, gathering. Enjoy real sound in your life. Just not have a try

Features:
Alternative ear plugs in 2 different sizes are included, made of soft silicone material, fits your diverse needs and comfortable to wear.
Cell powered, compact design, mini in size and light in weight, user-friendly.
4 levelsadjustable volume, you can turn up the volume from low to high to fit diverse use.
Nice fordailyuseforenjoyingthew-onderfulsound.
Easytowearandflexibletohandle. Wideapplicationsinm-anyscenes,likelisteningtomusic,enjoyingconcert,h-oldingparty.

Specifications:
Material: silica gel + ABS
Max sound output:1294dB
Sound gain: 505dB
Total harmonicwave distortion: 5%
Equivalent input noise level:45dB
Frequency range: 450-3500Hz
Voltage: DC1.5V
Working current:4mA
Color: As pictures
Battery: 1 * lithium battery, 1.5V, 140mAh (included)
Package size: 100 * 75 * 30mm / 3.9* 2.9 * 1.2inches(Length * Width * Height)
Package weight: 63g / 2.2ounces

Packing List:
1 * Sound Amplifier Host
2 * Ear Plug
2 * Cell
1 * Instruction