• 5.0 Bluetooth-compatible chip, fast connection, stable transmission, excellent sound quality, both low power consumption and high bitstream audio wireless transmission, can be connected to two audio devices at the same time rotating playback
• Support Bluetooth-compatible connection, TF card playback, U disk playback, AUX audio playback, support lossless FLAC, APE format MP3, WAV, WMA music decoding
• Braided lanyard design, firm and durable easy to screw up the speaker, can be hand-held or hung on the backpack, wherever you go, it is a convenient travel partner
• Totally enclosed chamber design, waterproof up to IPX7, so you can use it in different places whether it's the bathroom, the beach, or outdoors without worrying about superiority
• Support AUX audio cable connection, compatible with most tablets, cell phones, and other digital devices, one machine multi-purpose 

Specifications:

• Wireless Standard: 5.0
• Transmission distance: 10m
• Output power: 10W*2
• Playing time: 4-6 hours
• Frequency effect: 80Hz~15KHz
• Waterproof grade: 6 waterproof
• Speaker: 66mm, 40 10W*2
• Input power: 5V=1A
• Maximum current consumption: 1A
• Battery type: 18650 lithium-ion battery 3000mAh
• Audio signal input interface: standard 3.5mm (stereo)