Portable subwoofer outdoor Bluetooth speaker supporting phone card audio speakers

Basic parameters
Bluetooth version: Vmicro 3.0

Frequency: 2.402-2.480GHz

Maximum output power: 3W
Bluetooth version: Vmicro 2.0MIC Sensitivity: -38db
Sensitivity: Better than -82dBm
Distance: 10-30meters
Charge voltage: 4.8V -5.5V DC
Operating voltage: 3.7V -4.2V DC
Working current: 150MA
Quiescent Current:> 1UA
Battery: 450Mah polymer

Features:
Bluetooth Input
Audio Input
Handsfree function
TF card function
Play, pause, switch down song
USB Sound Card
Card reader
Instruction manual:
And mobile phones, computers and other devices connected stereo Bluetooth output:
You can connect the D25 Bluetooth speakers and Bluetooth output device, you can achieve wireless play
1) Set the mode switch to Bluetooth mode, then the D25 will slow down after flashing blue light
2) Tap the Play / Pause multifunction key, the D25 red and blue lights flash alternately
3) using mobile phones, computers and other Bluetooth devices search, find and D at the beginning of the English pair, when paired with the phone, please follow the Pause button, enter the Bluetooth sending state, long bright blue light after successful pairing. For some devices, you can set up automatic connection in mobile phones, so you can skip steps 2 and 3 again paired.

Key Description:
1) Press left: Press and hold: volume down, short press: Upper song
2) Press right: Press and hold: increase volume, short press: next song
Accessories: Speaker + manual + cable + carabiner