1.
4
（
RODUCT PICTURE AND FUNCTION DEFINITION
）
Bluetooth version V4.1
，
C lass II
CSR 8670
The Bluetooth
chip
Multi-points
supported
APTX use tips
Dimensions
Support RX and TX mode. In TX
mode, you can send your audio
program to two Bluetooth
devices simultaneously.
One-connection, it will connect
APTX(based on your earphone
and speaker support APTX too),
two connections, it change to the
SBC CODEC automatically.
Frequency range 2.402G H z-2.480G H z
About 12 hours
About 13 hours
About 2 hours
Working time
(RX mode)
Working time
(TX mode)
Charging time
Bluetooth
protocol
A2DP, AVRCP
CODEC
SBC ,APTX,APTX-LL
Battery capacity
250m Ah rechargeable
lithium battery.
Charging supply
5VD C ,100-240V AC adapter,≥300MA
Working
temperature
-10-55
℃
72*60*16m m
2.1
（
P
RODUCTS
INSTRUCTIONS
）
2.1
（
P
RODUCTS
INSTRUCTIONS
）
1
、
Power On
When it is off, long press the “MFB button” for two seconds and the
blue light blinks.
2
、
Power Off
Long press "MFB" for three seconds until red light is off after flashes
twice.
3
、
Mode change
Press the button to the TX to enter TX mode
Press the button to the RX to enter RX mode
4
、
Pairing mode
It can enter into the pairing mode if you double click the “MFB” after
you turn it on. It can enter into the pairing mode automatically after it
is power on for the first use. It can pair the devices which have been
connected before automatically after it is power on. If it cannot find the
devices connected before within eight seconds, it will enter into the
pairing mode automatically. Several seconds (the more devices
connected before, the longer it needs and every device need about
eight seconds)