Portable MOOC Wireless Microphone

DSP-2800

Name: DSP-2800 Portable MOOC Wireless Microphone
Brand: ARTCK Audio
SKU: DSP-2800

Stable multi-channel wireless operation for meetings, presentations and live applications.

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Product Overview

Clear, dependable audio for professional spaces

Stable multi-channel wireless operation for meetings, presentations and live applications.

Technical Information

Technical specifications

English specifications are provided for review. Missing or conflicting source values are marked in the table; confirm these with ARTCK before specifying the product.

English technical specifications
Transmitter audio frequency response	50 Hz–12 kHz
Transmitter modulation	O-QPSK; BT = 0.5 Gaussian
Transmitter RF output power	2.5 mW
Pairing	ID-code pairing with automatic connection locking
Transmitter sensitivity	-82 dBm at 1% BER
Transmitter current consumption	50 mA
Continuous operating time	>20 hours
Battery	3.7 V lithium-polymer; 1200 mAh
Battery charging time	Approximately 4 hours
Transmitter weight	70 g
Transmitter dimensions	Source reads 108 × 33 × 2l mm; final dimension requires confirmation
Transmitter functions	Microphone, laser pointer and PPT page control
Receiver / transmitter frequency range	Source lists 2.4–2.483 MHz despite describing 2.4G operation; verify the unit
Wireless transmission	Two-way 2.4G frequency hopping, as stated in the source
Receiver frequency response	50 Hz–12 kHz
Receiver modulation	O-QPSK; BT = 0.5 Gaussian
Receiver sensitivity	-82 dBm at 1% BER
Receiver signal-to-noise ratio	≥110 dB
Receiver harmonic distortion	≤0.5%
Receiver audio output	3.5 mm
Receiver supply / data	USB; standard USB and Micro-USB ports
Operating range	≥50 m
Operating temperature	-30 to 50 °C
Transmitter connections	External MIC input; charging/data-upgrade connection
Controls	Laser pointer, recording start/resume/pause/stop, PPT pages and power switch
Recording shortcuts	Start/resume Alt+R; stop Alt+S; pause appears as atl+P in the source and requires confirmation
Indicators	Battery level, recording, pause, stop and pairing status
Connection time	Not supplied in the source

View original Chinese specifications

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发射端内置咪头，可手持使用，也可配头戴使用;
智能化设计，即插即用，随开随用;
便携式接收机，针对移动使用设计，配合移动录课使用。
手持端提供三个控制按键，可定制接口，与录播软件配套对接，特别适合慕课录课使用；
便携式接收端，可方便与笔记本电脑、移动录播主机、教学一体机等连接使用。
接收端：
频率范围： 2.4~2.483MHz
频率响应： 50Hz~12KHz
调制方式： O-QPSK ， BT=0.5Gaussian
连接方式： ID 对码，自动连接锁定
接收方式：双向 2.4G 短波跳频
灵敏度： -82dBm(1%BER)
信噪比：≥ 110dB
谐波失真：≤ 0.5%
音频输出： Ø 3.5 音频输出口
电源： USB 供电
数据接口：标准 USB 及 Micro USB 双接口
1. 3.5音频输出口
2. 标准USB供电口
3. Micro USB供电口
发射端:
频率范围： 2.4~2.483MHz
频率 n 向应： 50Hz~12KHz
调制方式： O-QPSK ， BT=0.5Gaussian
发射功率： 2.5mW
链接方式： ID 对码，自动连接锁定
传输方式：双向 2.4G 短波跳频
连接时间：秒
灵敏度： -82dBm (1%BER)
耗电电流： 50mA
连续音频传输时间： >20 小时
供电方式： 3.7V 聚合物锂电池
电池容量： 1200mAH
电池充电时间：约 4 小时
工作范围：≥ 50 米
温度范围： -30~50 ℃
重量： 70g
尺寸： 108mmx33mmx2lmm
1. MIC输入接口
2. 充电及数据升级接口
3. 激光光源孔
4. MIC拾音口
5. 电池电量显示
6. 录播工作中状态图示（兼对频状态提示）
7. 录播暂停状态图示
8. 录播停止状态图示
9. 激光教鞭键
10. 开始、继续键►：alt+R；暂停键 II：atl+P
11. 停止键：alt+S
12. PPT翻页键
13. 开关
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