Индивидуальные Оптовые 3 5 мм Проводные

Категория: Language Learning >>>
Поставщик: Shaanxi,Greelan,Technology,Development,Co.,Ltd.

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-15-2025	0.40 $*	0.13 $*
Aug-15-2025	0.78 $*	0.29 $*
Jul-15-2025	0.76 $*	0.46 $*
Jun-15-2025	0.5 $*	0.9 $*
May-15-2025	0.90 $*	0.8 $*
Apr-15-2025	0.99 $*	0.92 $*
Mar-15-2025	0.84 $*	0.95 $*
Feb-15-2025	0.43 $*	0.25 $*
Jan-15-2025	0.80 $*	0.65 $*

Характеристики

Product Description

Product Introduce: Headphones: 1. Frequency Response: 125Hz ~ 8000 Hz, ± 17 dB (0dB = 20uPa The) (input power = 1mW). 2. Electrical Impedance: 32Ω± 20%. 3. Sensitivity≥ 100dB/1mW (0dB = 20uPa). Microphone: 1. Frequency response: 40-20000HZ. 2. Type: electrets microphone. 3. Sensitivity: -47 ± 2 dB (0 dB = 1V/Pa). 4. Directional type: two-way.

Teacher’s Computer (Monitor + Host): CAN NOT use laptop/ IPad/ Notebook. CPU: I5/RAM: 4G, 1T. Host need use VGA port, CAN NOT use DVI, HDMI port type host. Computer Host Net-Port: 1000M
Computer system: Win7/8/10-32Bit/ 64Bit

Product Introduce:

Headphones:

1. Frequency Response: 125Hz ~ 8000 Hz, ± 17 dB (0dB = 20uPa The) (input power = 1mW).

2. Electrical Impedance: 32Ω± 20%.

3. Sensitivity≥ 100dB/1mW (0dB = 20uPa).

Microphone:

1. Frequency response: 40-20000HZ.

2. Type: electrets microphone.

3. Sensitivity: -47 ± 2 dB (0 dB = 1V/Pa).

4. Directional type: two-way.

Teacher’s Computer (Monitor + Host):

CAN NOT use laptop/ IPad/ Notebook.

CPU: I5/RAM: 4G, 1T.

Host need use VGA port, CAN NOT use DVI, HDMI port type host.

Computer Host Net-Port: 1000M

Computer system:

Win7/8/10-32Bit/ 64Bit

Company Information

Shaanxi GREELAN Technology Development Co., Ltd, established in 2003, which is specialized in the digital language lab, with strength on language learning system, language lab equipment, and language lab software. Our companies own the import and export rights and pass the FCC, CE, ISO9001, ISO18001, CCC, etc., authentication. At present, we have 12 hardware patents and 4 software copyrights. We aim to help people learning language easier and happier.