OPERATION - 15265 ads

Tuesday, August 28, 2018

Quantity : at least 4 - Price : At least 50 Dollars

With the rapid development of modern industrial engineering, the various manufacturing machine, transportation machine are all developing to high speed, high efficiency, high precision, and automation. However, with the increase of equipment's power and speed, the intensity of the...

Thursday, August 23, 2018

Flight Control System The UAV flight control system is the "brain" of the UAV system, which mainly completes the functions of flighting, controlling, commanding and task management. Flight control system aims to maintain the UAV attitude and the flight path stability, which including...

Thursday, August 23, 2018

Industrial UAV refers to unmanned aerial vehicle that can be used in the fields such as mapping, fire protection, security, electricity, energy use, water resource, insurance, marine, environmental protection, express delivery, disaster relief and law enforcement, etc. Industrial...

Thursday, August 23, 2018

Agricultural drones refer to drones for plant protection, which can be used for pesticide spraying by remote control or flight control. Agricultural drones features cheap price, small volume, light weight, and convenient transportation, which can realize vertical take-off and landing...

Wednesday, August 22, 2018

- Specification of JH-158 BTE Style Ear Amplifier Cheap Hearing Aids - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-116 Personal Sound Amplifier Behind The Ear Hearing Aid - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-233 Body Worn Pocket Ear Sound Amplifier Hearing Aid - Max Sound Output 131 ± 5dB Voltage 1.5V Sound Gain ≥55dB/58.9 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation Current ≤4mA Operation current/mA 6...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-238 Pocket Body Worn Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥50dB/51.5 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation ≤4mA Operation current/mA 6.9 Current...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-909 Rechargeable ITE Hearing Aid Hearing Amplifier - Highest sound pressure level for input SSPL 90dB 126 ± 3dB Equivalent input noise level: ≤32dB Max. Output sound level gain: 35±5dB Reference Test Gain: 30±5dB Average Saturation Output(HF-Average SSPL 90)...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-905 Rechargeable ITE Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.2V Sound Gain ≥35dB Battery size Total Harmonic ≤5% Battery capacity/Mah 40 Wave Distortion Operation ≤3mA Operation current/mA 1.2 Current Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-907 ITE Mini Hearing Aid Hearing Amplifier - Max Sound Output 120 ± 5dB Voltage 1.5V Sound Gain ≥35dB/28 Battery size A10 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 100 Operation Current ≤6mA Operation current/mA 3.5 Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-900a ITE Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/49.4 Battery size A312 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 160 Operation Current ≤4mA Operation current/mA 1.6 Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-906 ITE Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG3 Total Harmonic Wave Distortion ≤7% Battery capacity/Mah 43 Operation Current ≤6mA Operation current/mA 1.7 Frequency Range 200-4000Hz...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-338 BTE USB Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 128 ± 3dB Noise EIN <26dB</td> Sound Gain 95±3dB Battery size NI-MH rechargeable battery Total Harmonic Wave Distortion 500Hz <= 3%</td> Working current 3...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-337 BTE Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.2V Sound Gain ≥35dB Battery size NI-MH Rechargeable battery Total Harmonic Wave Distortion ≤10% Battery capacity/Mah 40 Operation ≤4mA Operation current/mA 1...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-351 BTE FM Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB Battery size Built-in lithium battery Total Harmonic Wave Distortion 500Hz <= 3%</td> Battery capacity/Mah / 800Hz <= 5%...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-129 BTE FM Bluetooth Earphone Appearance Ear Zoom Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG13 Total Harmonic ≤5% Battery capacity/Mah 160 Wave Distortion Operation ≤4mA Operation...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-119 BTE Bluetooth Earphone Appearance Ear Zoom Hearing Aid Hearing Amplifier - Max Sound Output 135 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG13 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 160 Operation Current ≤4mA Operation...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-D04 BTE FM Balanced Armature Loudspeaker Hearing Aid Hearing Amplifier - Max Sound Output 125±3dB Voltage 1.5V Sound Gain 35±5dB Battery Type LR754 Total Harmonic ≤10% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier - Max Sound Output 130±3dB Sound Gain 40±5dB Total Harmonic Wave Distortion 500HZ<3%<br /> 800HZ<5%<br /> 1600HZ<1%</td> Operation Current/mA...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-180 BTE BTE Ear Hook Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥40dB Battery size LR754 Total Harmonic ≤6% Battery capacity/Mah 68 Wave Distortion Operation Current ≤4mA Operation current/mA 2.9 Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-125 Analog BTE RIC Hearing Aid Hearing Amplifier - Max Sound Output 124 ± 5dB Voltage 1.5V Sound Gain ≥40dB/51 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation Current ≤4mA Operation current/mA 4.5 Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-117 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 129dB±3 Voltage 1.5V Sound Gain ≥45dB±5 Battery size LR44H Total Harmonic ≤10% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-115 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-113 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 123 ± 5dB Voltage 1.5V Sound Gain ≥45dB/45 Battery Type AG13 Total Harmonic ≤5%/2.3 Battery capacity/Mah 160 Wave Distortion Operation ≤4mA Operation current/mA 5 Current/mA...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-908 ITE Mini Digital Hearing Aid Hearing Amplifier - Color Beige/optional colors Frequency range 800-5000Hz Total harmonic wave distortion 500Hz≤0%, 70dB 800Hz≤1%, 70dB 1600Hz≤0.2%, 65dB OSPL90 Max at 1900Hz, 124.4dB HFA/AVG/114.4dB FOG50 Max at 1500Hz/51...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

- Specification of JH-D10 Digital Trimmer 3 Modes Ear Hook BTE Hearing Aid Hearing Amplifier - Max Sound Output 128±3dB Voltage D.C.1.4V Sound Gain 57±5dB Battery Type LR44H/A675 Total Harmonic Wave Distortion 500Hz ＜6% 800Hz ＜4% 1600Hz ＜1% Battery capacity/Mah 68...

Wednesday, August 22, 2018

Quantity : 80000Pcs - Price : 3-50USD

These hearing aids are programmed before producing, and the only difference with programmable hearing aid is that once it produced, it can't be programmed again. And some of the non-programmable hearing aid have trimmer window, which can control "MPO" and "NH", like JH-D10 and JH-D18...

Saturday, August 18, 2018

- Installation and use of enameled wire stripping machine. - Choose appropriate peeling wheel and install them on the machine. Put two enameled wire in the middle of the peeling wheels, set up two peeling wheels to clamp the enameled wire and gently hold the coil part with your hand...

Saturday, August 18, 2018

- Several kinds of winding methods commonly used for twist tie machines - Twist tie machine meets the packaging requirements of unitized goods storage, transport and mechanical handling operation to design and manufacture the pallet, coping style, type, type of pretension film twist...