Reviews User Switchable Modes

FiiO A1 Portable Headphone Amplifier Black

Same function as A1 Silver but in stunning Black Color.
With higher power and hi-fidelity output than smartphones, the A1 satisfies your need for more sound quality and quantity.
The A1's volume buttons are made of Alps microswitches for sensitive and reliable operation.
The A1 provides Flat, Bass1, Bass2, and Bass3 EQ modes, switchable simply by briefly pressing the power button,.
Three-Color Status LED, Frequency response of 20 Hz to 20 kHz.

✔ HIGH ACCURACY: With laser precision technology, Compared to Bubble Levels, it can be more intuitive and easier to find the horizontal direction, helps to improve the accuracy of the vertical bevel.
Distance Measuring Range: 0.1 to 393 feet, Extreme Accuracy: ±1/16″.
Switchable among M/In/Ft for free adjustment.
✔ DURABLE AND PORTABLE DESIGN: Covered soft rubber is for more shock-resistant and wear-resistant.
IP54 waterproof level and dust-proof function protect the laser distance measure to the maximum extent.
Wrist strap lets you hold the meter steady and carry easily.
✔ MULTIPLE MEASUREMENT MODES: Three measuring reference Rear/Front/End piece allows you to project Single Distance/Area/Volume Measurement, Continuous Measurement, Auto Level/Height Measurement, Measurement by Pythagoras.
Optional side measure button enables much more measuring convenience.
Internal memory can store 20 groups measurements.
✔ LCD BACKLIGHT AND MUTE SETTING: Large backlight screen provides you with a better visibility in dark areas.
Mute setting allows you turn on or off the measure beep at your will. Broad use for home, construction and industries, especially in large areas such as rooms, apartments, buildings, real estates, factories, warehouses etc.

100% Brand new with high quality and high security with blue backlight. Support entry modes : Password Only / ID Card Only / Password + ID Card..
With lock relay output, secure / normal Mode, NO / NC output. Built-in proximity card reader (125KHZ ASK modulation). Metallic case for better protection, sturdy and durable. Alarm function with internal buzze..
8 Auxiliary Modes including : door ajar, forced door, shunt, door monitor, normal / secure. 2 modes of operation : normal mode, secure mode. 3 user leers : normal user, secure user, master user..
Support 1000 standard users, and auxiliary input & auxiliary output. Can add card number and delete card number depending on your requirement, sensitiely and response quickly..
We solemnly promise you that if you find problems with the product itself, you can contact us in time. we will definitely gie you a reply in the first place and return it for you. please feel free to use it..

4 switchable modes: anti-mosquitoes, anti-flies, anti-spiders, anti-termites & ants.
A4-System: automatic management of ultrasonics' volumes (no manipulation needed).
A4-System: automatic outdoor and indoor management.
14, 16 & 20KHz ultrasonics against all types of insects.
Incredible vector based interface & animations with ultra-hd graphics.

【4-Color Lamp Beads&10 Levels Brightness Adjustable】The new fish tank light has 30 LEDs:13-White/12-Blue/3-Red/2-Green.The brightness and switches....
【3 MODES FISH LIGHT Switchable】The aquarium light has three kinds of switchable mixed lights: White-Green, Red-Blue,....
【Auto On/Off Cycle Timer】The aquarium lights for fish tank built in timer and 3 timing durations, it will come on and go off at the same time....
【More Waterproof&Easy to Install】With waterproof IP68 rating,The Aquarium Light can be fully submerged in water and work underwater.Strong Suction....
【Safer Design】Made of a highly transparent and explosion-proof acrylic lampshade, it is durable and easy to clean. With low voltage of 12V, the....

Serious advances in affordable professional wireless.
Clear sound quality and rock-solid, dependable performance.
10 compatible user-switchable channels in one of two UHF frequency ranges.
Includes ATW-R2100a receiver and ATW-T220a handheld cardioid dynamic microphone/transmitter.
I Band Frequency: 487.125-506.500 MHz (TV 16-20).

【2-in-1 Voltage & Current Generator】--- Voltage Output: -10V~+10V, precision is 0.01V, current output: 0-22mA, precision is 0.01mA, rotate the encoder knob to adjust output voltage and current, switchable and adjustable, can be calibrated. Encoder knob rotate one circle has 20 pulses..
【Multiple 4-Digit Display】--- With 4 different types of digit display, two decimal points, you can press "Mode" button to switch the display mode between voltage and current, you can also follow the instructions to switch 0-100 percent or 0-50HZ display..
【Different Power Supply Modes】--- With 1000mAh 3.7V built-in rechargeable battery embedded inside (charged via micro USB port), it can be powered via various ways, micro USB-5V, external power DC 15-30V, each can make the signal generator to work..
【Safe to Use】--- Output range: passive or active 0-22mA, -10~+10V, voltage output can be exactly 0.00V.
output range and precision are programmable and adjustable. Output is with short circuit protection, power supply with reverse connection protection, which is safe for you to use. User can set 9 x fast signal output points, more convenient to do debugging..
【Wide Application】--- It can be used for PLC and panel debugging, device testing, frequency converte....

【High Quality 】Made of 90% aluminum alloy, and rubber. Durable aluminum alloy crust, abrasion resistance, waterproof.Compact to fit easily into....
【SUPER BRIGHT & LONG-LASTING】High Lumen flashlight LED Bulb provides bright light, powerful Lumen LED generates a brilliant large area floodlight....
【ZOOMABLE FLASHLIGTH & ADJUSTABLE FOCUS】 Our flashlights utilize the latest durable T6 LED chip, provides super bright light beam. This....
【5 LIGHT MODES CAN BE EASILY CONVERTED】 LED flashlight supports five switchable modes, High / Medium / Low / Strobe / SOS. A full-press to switch....
【SUPER DURABLE】 The body of this flashlight is built of high quality aluminum alloy. Sturdy and durable enough for long time daily using. This....