Android/IOS
Bluetooth Microphone USER GUIDE
2. Overviews of the Bluetooth
Microphone
desktop charger interface
PTT
volume up
volume down
power/
play/pause
USB
SOS
Button
earphone jack group switch
power
indicator function indicator
speaker
MIC
6.Operation
Press Power button to answer phone when Bluetooth
microphone has been activated.
Answer the call
Decline
Double click Power button to decline when there is call in.
3.Specification
Hang up the call
Single click power button to hang up the call.
Mp3 play and pause
Single click power button to play or pause MP3 music
when connected.
Standby
Auto hibernation starts in 15min. When Bluetooth
microphone has not activated.
PTT function
Bluetooth microphone supports PTT software such
as Zello ,Total control and etc. PTT button can be
used when it is activated.
Group switch
Single click FW button with green light on and Single
click V+/V- to switch group when Bluetooth microphone
is activated for PTT software. End group switch by
pressing PTT button.
SOS
Press SOS button and hold for 2S when Bluetooth
microphone is activated for PTT software. PTT starts after
red light turns on and alarm goes off. It lasts for 20s.
Firmware upgrade
For Bluetooth microphone firmware upgrade, TF card and
download box are necessary. Corresponding software
must be installed to burn the firmware to TF card. Please
connect download box and Bluetooth microphone with
USB cable. Press and hold the reset button (under the
battery after opening the rear cover) . Release reset button
after the download box starts up. Successful download will
be prompted in 10s.
7.FAQ
No voice
Please check if volume sets too low. Please set the
switch properly.
Echo with speaker
Speaker is too close to MIC. Please relocate the speaker.
Disconnected with mobile phone.
Low battery.
Distance between Bluetooth microphone and mobile
phone is over 10m. Shielding obstacle interferes.
Failed to match with mobile phone.
Clean up all matching information according to user
guide. The Bluetooth microphone and the phone
should be placed less than 1m and re-start the match.
System halted
It may caused by high-strength radio frequency
interference, such as GSM base station, airport radar
and a high power TV transmission tower. Please reset
and restart after leaving the interference source.
Abnormal working indicator
A. Overuse or long period of non-use may cause low
battery. It need to be charged for an hour and
unplug and recharge.
B. Change a charging cable or charger.
It is probably low battery. Please charge for 2-3hrs.
Failed to power on.
4.Button function
Button Description
SOS button SOS
FW button
（valid in 30 sec.）
Group switch page up
Group switch page down
V+ Volume up
V- Volume down
Operation
Press and hold
for 2 sec.
Single click V+
Single click V-
Single click
Single click
ON/OFF
PTT
Encryption
Turn on
Turn off
Answer the call
Hang up the call
Decline
Push to Talk
Release to End
Encryption Type
Press and hold for 3 sec.
Press and hold for 3 sec.
Single click
Single click
Double click
Push to Talk
Release to End
To receive APP command
when radio is on
1. Description
Bluetooth microphone is a kind of professional intercom
equipment, by connecting APP of smart phone or network
radio , providing truly secure link, easy pairing on the go,
and instant push-to-talk. The Bluetooth microphone , as
wireless accessory, is flexible and cost-effective that gives
users more mobility in their critical communication.
Bluetooth version:
Bluetooth protocol:
Transmission range：
Music:
Talking time:
PTT time:
Standby time:
Working temperature:
Storage temperature:
Earphone jack:
Battery:
Charging time:
BT4.2
HFP;HSP;A2DP;AVRCP;SPP
>10m
>12hrs in maximum volume
≈14hrs
>90hrs
-10~50℃
-25~60℃
3.5mm,PPT supportive
2000mA/3.7V
2.5h
≈14hrs
5.LED indicator
Description Power indicator
（red light）
Power indicator
（green light）
Power on
Power off
Under charging
PTT calling
Low battery
SOS
Red light on for 3
seconds then off
Red for 3
seconds then off
light on
Red light on
Red light on
Fast-blink
green light on
Description
Power on
Power off
Bluetooth match
PTT called
Full charged
Group Switch
Green for
3 seconds then off
light on
Green for
3 seconds then off
light on
Fast-blink
green light on
green light on
green light on
支持安卓/苹果系统
蓝牙无线对讲手咪使用说明书
2．产品视图
座充接口
PTT
音量加
音量减
电源键/
播放/暂停
USB
SOS键耳机孔 群组切换键
电源指示灯 功能指示灯
喇叭
MIC
3.技术参数
蓝牙版本
蓝牙协议:
无线传输范围:
音乐播放:
通话时长:
对讲时长:
待机时长:
工作温度:
存储温度:
耳机孔:
电池规格:
充电时间:
BT4.2
HFP;HSP;A2DP;AVRCP;SPP
大于10米
最大音量持续使用12小时以上
约14小时
约14小时
大于90小时以上
-10~50度
-25~60度
3.5mm通用耳机孔,支持PTT耳机
2000mA/3.7V
2.5h
6.功能操作
当手机有来电时，在连接手咪的情况下，短按开关键可接听
来电。
电话处理
拒接来电
当手机来电铃响，双击开关键，即可拒接来电。
挂断电话
在通话状态下，单击开关键，即可挂断。
Mp3播放及暂停处理
当手机连接手咪播放MP3 ，单击开关键可播放或暂停。
待机
当手咪处于待配对状态，15分钟后无连接蓝牙，系统自动休
眠待机。
PTT功能
当手咪支持手机对讲软件如Zello,滔滔等，手机与手咪蓝牙
连接后可通过PTT按键实现PTT功能。
群组切换
当手咪连接对讲软件，单击FW键绿灯亮，单击V+/V-可实
现群组切换,按PTT终止群组切换。
SOS求救
当蓝牙手咪连接对讲软件，长按2S SOS键，红灯亮响报警
音后可实现对讲，时长20S。
固件升级
蓝牙手咪如果需要进行固件升级，应准备（TF卡 下载盒），
需要安装相应的软件将固件烧录到TF卡，插入下载盒USB线
连接手咪 USB孔,按住复位键（电池仓电池座下方），下载
盒开机，松开复位键即可！约10S会提示下载成功。
7.常见问题答疑
没有声音
请检查音量是否太低，声道转换开关是否拨动到正确的
位置。
喇叭有回音
喇叭距MIC太近会导致回音，啸叫，请把MIC喇叭调到
距离MIC正确的位置。
与手机连接断开
确认电量是否过低， 手咪与手机的距离是否在10米范围
内？或中间是否有干屏蔽障碍物等。
无法与手机配对
先按说明书指示清除所有配对信息，把手咪与手机放置
在1M以内的范围内，重新配对。
死机
因受到高强射频干扰，如靠近大功率电视发射塔，GSM
基站或机场雷达时可能会导致死机，请在离开干扰源后
复位重启。
工作指示灯不正常
A.闲置时间过久，或过度使用等情况，导致电池电池过
低，需要预充一个小时后，再重新插拔充电，才能使
指示灯正常显示。
B.换一条充电线或充电器试试。
可能是电池电量太低，请充电2-3小时后再进行开机操
作。
无法开机
5.LED指示状态表
状态描述 电源指示灯
（红灯） 状态描述 功能指示灯
（绿灯）
开机成功 亮3秒后灭 开机成功 亮3秒后灭
关机成功 亮3秒后灭 关机成功 亮3秒后灭
充电中 常亮 蓝牙待配对 快闪烁
PTT主叫 常亮 PTT被叫 常亮
电量低 快闪烁 充电满 常亮
SOS呼救 常亮 群组切换 常亮
4.按键功能定义
按键 描述
SOS键 求救功能按键
FW键
（有效周期30秒）
群组切换上翻
群组切换下翻
V+键 音量增加
V-键 音量降低
参数
长按2秒
单击一次V+
单击一次V-
单击一次
单击一次
ON/OFF键
PTT键
加密
开机
关机
接听来电
挂断电话
拒接
发送语音
结束语音
加密算法
关机状态下长按3秒
开机状态下长按3秒
来电状态下单击一次接听
通话状态下单击一次挂断
来电状态下双击
按住
松开
开机接收APP指令
1. 产品说明
蓝牙咪头是专属对讲设备，其通过手机APP软件配合使用，本
产品作为一个对讲机周边设备，使用蓝牙无线连接，将耳机语
音和MIC语音双向传输，同时PTT等自定义功能按键提高了整
个产品的体验性。
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- English: Surecom 41-99 User manual
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