●Working distance: 10M

●SNR: 285db

● Battery:3.7V 500mAh

●Normal playing time: 2 H

●Speaker: 0 52 mm plus* 1

●Power: 3W *1

●Frequency response:120 Hz-20KHz

●Unit size: 123*46*81mm

●Unit weight: about 258g

●Charging: 5V/500mA

KEY AND SL OT FUNCTION:

1.USB slot: it can decode and play MP3 format audio when put USB card into the slot.

2.TF slot: it can decode and play MP3 format audio when put TF card into the slot.

3.Power switch.

4.DC 5V charging slot:use the standard Mini USB micro charging cable for power charging./ AUX : it can play audio via 3.5mm AT cable to audio camera.

5.When play music(USB card 1 TF card/LINE IN/ FM/BT),press short to switch USB/TF/

LINE IN/FM /BT. Keep the TWS speaker under BT mode without pairing ,press the“M".key for 3 seconds either of the speaker until hear a hint"du du"for TWS mode ,then can paire the mobile.

6.When play music , press short for last song, press long to turn down the volume.

7.When play music, press short for next song, press long to turn up the volume.

8.When play music(USB card/TF card/LINE IN/BT), press short for "play/pause ". under BT mode with mobile paired,press short to answer a call,press again to hand up . in FM mode, press short to search station automatically, press again to stop searching).

Note: Under FM mode, put in the AUX cable to get better FM radio station.