Waterproof, can be used at the beach or rainy days

With Bluetooth technology, music can be played without a cable, quick and easy

Small in size, easy to carry, music can be played up to several hours

Absolutely a best gift for summer and outdoor

Effective power: 3W (RMS)
Speaker: 40mm 4Ω 3W full range of external magnetic
Frequency response: 60Hz ~ 18kHz
Signal to noise ratio: ≥75dB
Program: RDA, amplifier: Class D amplifier
Audio input FM, TF card (capacity ≤ 32G) U disk
Built-in battery: 300mA lithium battery
Play time: 1-3H
Charging time: 2-3H