Specification:

--Colour: Black;
--Material: ABS;
--Play mode: Blue tooth connection, TF card / U disk playback, FM radio;
--BT version: 5.0;
---Rated power: 5W;
--Frequency response range: 60Hz-15KHz;
--Speaker diameter: 4 inches;
--LED light: with;
--Signal to noise ratio: ≥70db;
--Extended storage: 32GB
--Effective distance: 10M (in case of barrier-free)
--Battery capacity: 1200mah (built-in)
--Use time: 3 hours or so
--Charging interface: MICRO USB charging
--Button functions: On/Off, Up/Down, Pause/Play, Mode Switch
--Product size: 13*10.5*20cm

Feature:
Advanced Blue tooth chip and circuit design, supporting most Blue tooth devices.
Excellent for outdoor sport and exercise and travel and so on
Support line-in audio input, connected to Blue tooth speaker through output devices, for example mp3/mp4, tablet, mobile phone etc.
Transmission distance can be up to 10m, and it’s more compact, portable and convenient to carry.
Wireless portable mini Blue tooth stereo speaker system, hands-free call.