Best Double Frequency

Beyerdynamic M160 Double Ribbon Microphone - Hypercardioid

【Good Welding Property】: Double sides adopt the process of immersion metal, make the printed circuit surface is stable with color, brightness and smooth coating, good welding property..
【Good Performance】 This product with wide frequency range, high gain, low noise figure. Durable material provides long term corrosion protection, even in salt air enviroments..
【Scope of Application】 Widely used for high frequency or intermediate frequency preamplifier of radio receiver, combiner, repeaters, and distal/digital wireless broadband head equipment, etc..
【Power Supply Voltage】: DC3-5.5V(typical +5V), (typical current value 125mA). Gain: typical value of [email protected] (Different frequency gains are slightly different ). Input output impedance: 50 Ω..
【Quality Service】 We strive to provide you with high quality and convenient service. You are welcome to contact us if you have any problem about our product, we will give you a satisfactory reply..

Gasketed diaphragm alters its effective size and frequency response by simply changing pressure, bell-type low frequency response is achieved by simply holding the chestpiece in place with light pressure.
Firm pressure will produce diaphragm-type high frequency performance, sculpted chestpiece made from lightweight zinc alloy plated with an attractive satin finish, aluminum binaurals in satin finish.
Double leaf internal spring fixed at 15 degree angle for greater comfort, reinforced yoke molded into flexible 22" pvc "y" tubing.
Adsoft delux pvc eartips for the ultimate in wearing comfort and acoustic seal, sprare diaphragm included, scope id tag included.
The 614 pediatric chestpiece is sculpted with 1inch diameter diaphragm,diaphragm retaining rim color matched to tubing, inspected in the usa.

...hine includes 2 high-quality lithium batteries with quadruple overload protection (each battery can last for 8 hours), 1 original charger and 1 spare 2000mah battery for outdoor work or indoor decoration..
【6 Levels Adjustable Vibration Speed】Scientific vibration switch design, adjustable 1-6 levels, intelligent frequency conversion, multi-level adjustment, one-key vibration, uniform force. The frequency can be adjusted according to the size of the bricks, the vibration frequency can be fine-tuned, the position of the bricks can be corrected, and the efficiency can be improved..
【Adsorption Lock Design】Hand-held Tile Tiling Machine adopts an adsorption lock design to release the strength of the arm. One key lock, one hand operation, one second tile. No need to press the lock for a long time, which is suitable for long-time work of engineering team or family..
【Super Suction】The tile vibration machine has a double suction cup design, which can safely and stably absorb 441lb (200kg) tiles. The thicker and enlarged suction cup absorbs firmly, it can automatically level the tiles and easily grab the tiles. It is very suitable for the movement and installation of floor tiles and wall tiles, greatly improving work efficiency..

...lly automatic operation and comes with a choice of coils, battery options and shaft configurations. If you're looking for super sensitive gold performance at a great price, then this is the detector you've been waiting for!.
An 18 kHz detector will normally have a depth advantage on nuggets ≥ 1.0g over a basic mid-frequency detector, and a 71 kHz detector will have a depth advantage on nuggets ≤ 0.1g. The advanced GOLD MONSTER 1000 uses an intermediate 45 kHz frequency AND a high speed 24-bit signal processor. This primary combination greatly boosts sensitivity to gold beyond that of other single frequency VLF detectors over a wide range of nugget sizes, without introducing excess noise and false signals..
Features: Fully automatic operation, Extra sensitive 45 kHz VLF performance, Highly adaptable, 2 search coils included, Easy quick start, Automatic noise cancel, Digital electronics, Auto ground balance, Faster processor, Automatic sensitivity.
Specification: Key Technology: Ultra-wide dynamic range 45kHz VLF, Detect Modes: Gold (Iron reject), Deep All-Metal, Discrimination: Gold Chance Indicator (high/low), Ground Balance: Automatic (Easy-Trak), Noise Cancel: Automatic (On start-up), Sensitivity Adjust: Manual (1–10), Auto (11), Auto+ (12), Vol....

It supports 5 bands and all frequencies compatible.
Compatible with A,B,E and F frequency bands.
Double-screen display, Easily Change frequency channels and bands by pressing button.
It is a Plug and play FPV receiver for Aerial Filming,designed for areas with too many frequencies.

Test Accuracy: The frequency meter is designed with dual intermediate frequencies. The intermediate frequency value and the addition and subtraction mode can be preset separately without affecting each other, which can achieve high stability and high resolution. The tester has good sensitivity, better than 60mVPP.
Excellent Performance: The frequency reference uses a temperature compensated voltage controlled crystal oscillator. The display driver adopts LED display special chip, the digital tube has high brightness and less external interference.
Small and Convenient: This module is compact and exquisite in design, can be put into a pocket, does not occupy extra space, is convenient to carry, and has reliable performance, good visual effects, and low cost.
Convenient to Operate: The circuit of the frequency meter is simple, the design structure is reasonable, and the unique two key control method and precise time algorithm are used to make the operation simple and fast.
Multi Function: The circuit is simple, the structure is reasonable, double button control, and the operation is simple. Each setting is automatically saved, and the power is on.

...lick the key to turn off the led light )It comes with dog teeth cleaning tool (tartar scraper) and can help you clean the stubborn stain and calculus in the depths of the oral cavity conveniently.
【ULTRASONIC CLEANING TECHNOLOGY】Our plaque remover for teeth adopts High-frequency vibration (40KHz vibration frequency for the tip), and the cleaning rate is 50% higher than ordinary tooth cleaners. Non-motor vibration and low noise. You can't tell it's vibrating until it touches your teeth or hard objects.
【5 SAFE CLEANING MODES 】 The dog toothbrush kit has 5 modes, including the Soft, Normal, Middle, Strong and Fierce modes.You can switch it depends on dog tooth.