W-KING S20 Portable Outdoor IPX6 Waterproof Stereo NFC Bluetooth-compatible Speaker FM Radio Music Subwoofer - Green

• The portable NFC wireless Bluetooth-compatible 4.0 speaker has a unique sturdy square design

• Made of high quality materials, it has the functions of splashproof, shockproof and dustproof

• Built-in 2000mAh rechargeable battery, breaking through 5-8 hours of using time, and it only takes 6 hours to fully charge

• NFC technology, just click to pair with NFC technology, convenient and instant connection(Your Bluetooth-compatible audio device need to have NFC function)

Specification:

• Model: S20 (BT201)

• Material: plastic

• Bluetooth-compatible version: V5.0

• Transmission range: 10m

• Total power: 3W x 2

• Signal to noise ratio: ≥80 decibels

• Frequency range: 160hz-20khz

• Impedance: 4 ohms

• FM frequency: 87mhz-108mhz

• Supported card type: TF

• Built-in battery capacity: 3.7V/2000mAh

• Battery type: Lithium-ion battery

• Music playback time: 5-8 hours

• THD: ≤1%

• Charging voltage/current: 5V±0.25V/0.5A

• Power supply: 3.7V DC

• Size: 174.5 x50x70mm