W-KING S20 Loudspeakers IPX6 Waterproof Bluetooth Speaker Portable NFC Bluetooth Speaker for Outdoor/Shower/Bike FM Radio

Features:
1, Unique rugged square design.
2, IPX6 Waterproof function makes it great for outdoor and bath use.
3, Enjoy an impressive crystal clear sound quality and robust bass realized through dual 3W audio drivers and passive subwoofers.
4, Connect to Bluetooth enabled device or just plug in with the 3.5mm audio cable to start your tunes.
5, Tap-to-pair with NFC technology for easy and instant connection (If your device has NFC function).
6, Built-in 2000mAh rechargeable battery enables 8-10 hours of playtime.
7, Small and lightweight, with a lanyard for easy portability.

Specification:
Model: S20
Bluetooth Handsfree: Yes
Bluetooth Version: V4.0
Operating range: 10m
Total Power: 3W * 2
Built-in Battery Capacity: 2000mAh
Battery Type: Li-ion battery
Music Play Time: 8-10 hours
Power Supply: 3.7V DC

Parameter:
Channel: 1.0
Interface: 3.5mm, USB 2.0
Microphone: Yes
SNR: 68db
Sensitivity: 80 dB
Frequency Response: 2.4GHz-2.48GHz
Impedance: 4ohm
FM Radio: Yes
FM Frequency: FM78.8-FM106.1
Memory Card Type: TF
Size: 10cm x 9cm x 5cm