Features:
Finger touch for light control, the brightness will adjust automatically based on top touch dimming and it can be converted to RGB colorful light mode by long pressing the horn mesh.
This speaker lamp compatible with all bt device,also support micro S-D card.
Support BT call, in BT mode, you can answer/hang up phone, use to free your hands.
FM radio function: manual FM, you can search station.
Charged by USB port, plug and play, dispel the trouble of using the batterys. 
Build-in 2000mAh Li battery, super long playing and lighting , up to for 38 hours batterys life.
IP55 proof level, widely used in hiking, camping, backpacking and other outdoor activities.
Specifications:
Material: ABS/PP/metal mesh
BT Version: BT4.2
Charging Input: DC5V 1A
Transmission Distance: 10M
Speaker: 4Ω 3W
Lighting powers: 2.4W
Frequency Range: 50Hz-20KHz
Charging-Time: 2.5H
Built-in batterys: 1*3.7V 2000mAh lithium batterys
Item size: 105*45mm/4.13*1.77in
Package size: 170*150*60mm/6.69*5.91*2.36in
Package weight: 310g/10.93oz
Package List:
1*Speaker
1*USB charing-cable
1*Buckle
1*User manual