Reviews 15mw 50hz New

Samson SR850 Studio Reference Monitoring Headphones+Rechargeable Headphone Amp

  • ...f HeadRock: RockvilIe HeadRock Battery Powered Rechargeable Personal Headphone Amplifier, 3.5MM headphone output, 3.5MM aux input for music player, Lithium Battery with 800mAh capacity, Rechargable battery lasts 5-8 hours per charge, Headphone Amplifier Works with 16 – 300 Ohm Impedance, Headphone output power: 65mW@16O 89mW@32O 95mW@64O 69mW@120O 29mW@300O, High/Low gain switch, Volume control, 300mv - 2000mv, Strong aluminum case ensures long life and strong heat dissipation..
  • Chipset: NE5532, THD: 0.0001%, Signal to Noise Ratio: 125dB, Frequency Response: ±odB (20Hz-20kHz), AMP Internal Voltage: 8V / 500mA, DC power Charging: 5V 1A, Weight: 0.17 lbs, Dimension (inches): 3.74” x 2.09” x 0.5” ( L X W X H).
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Rockville, 2 RWM1202VH VHF Wireless Dual Handheld Microphone System w/Mic Receiver v2

  • ... Frequency Width: 32Mhz, Dynamic Range: 110dB, Operating Temp: 14°F – 122°F..
  • Oscillation Mode: Quartz Crystal, Frequency Stability: 0. 005%, Modulation Mode: VHF, Frequency Response: 80Hz – 8 KHz (3 dB), Harmonic Radiation : < 63dBm, S/N: 60dB, RF Output Power: 10mW, Power Voltage: AC110V/ 220V - 50/60Hz, Mic Battery: 9V.
  • Receiver: Sensitivity: (S/N=30dB) >2mV , De-Emphasis: 50µS , Audio Output Impedance: 600O , Audio Output Level. : 0-0. 5V , Power Supply: AC110V /220V 50/60Hz , Current Consumption: =50mA , Audio Out Connector: 1/4" unbalanced , Transmitter: Frequency Stability: 0. 005% , RF Output Power: =30mW , Modulation Mode: VHF , Maximum Deviation Range: 50KHz , Microphone Mode: Fixed , Pre-Emphasis: 50µS , Power Supply: AA/1. 5V×2 , Current Consumption: =35mA.
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beyerdynamic DT 1770 PRO Headphones with Carrying Case and Pro Audio Headphone Stand Kit

  • ...ications: Transducer type: Dynamic. Operating principle: Closed. Nominal Impedance Headphones: 250 Ohms. Headphone Frequency Response: 5 - 40,000 Hz. Sound Coupling To The Ear: Circumaural (Around The Ear). Ean: 4010118710711. Cable & Plug: 3-Pin Xlr Plug & 6.35 Mm (1/4") Stereo Jack Plug.
  • Nominal SPL: 102 dB SPL (1 mW / 500 Hz). Max. SPL: 125 dB SPL (200 mW / 500 Hz). T.H.D: < 0.05% (1 mW / 500 Hz). Nominal power handling capacity: 200 mW. Sound coupling to the ear: Circumaural. Ambient noise attenuation: Velours: approx. 18 dBA. Nominal headband pressure: approx. 7.2 N. Weight (without cable): 388 g. Length and type of cable: 3 m / straight cable or 5 m / coiled cable (stretched), each detachable with 3-pin mini XLR cable connector, single-sided.
  • Connection: Gold-plated mini stereo jack (3.5 mm) & 1/4" adapter (6.35 mm). Features: SAMSON G-Track Pro Studio USB Condenser Microphone w/ Built in Audio Interface. Element Type: Dual back electret condenser. Diaphragm Width/Thickness: 25mm/3 microns. Polar Pattern: Cardioid (unidirectional), bi-directional, omni-directional. Frequency Response: 50Hz20kHz. Sensitivity: +6dB FS/PA (all polar patterns). Max. SPL: 120dB SPL. Bit Depth/Sample Rate: 16 or 24-bit/Up to 96kHz. Digital Output: USB.
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EMB EM-200W Professional Wireless Microphone System Dual Handheld (2 Microphones) 1 Cordless FM Receiver Including 1X 1/4' Jack Cable/Frequency Range: FM121.7-128.7MHz

  • Package Contents: 1 * Receiver / Transmitter / 2 * Wireless Microphone / 1 * 1/4" Jack Cable.
  • Frequency Response: 100Hz-10000Hz (±3dB) / Audio Distortion: Less than 1%.
  • Dynamic Range: 80dB / Operating Temperature: 0℃-45℃ / Service ares: 10m.
  • Microphone: Type: FM / S/N Ratio: Better than 80dB RF / power: 8mw (50mw max) / Freq. Dev.: 75KHz.
  • Receiver: Type : FM / S/N Ratio: 50dB / Audio Output level: >25mV / Sensitivity: 600w(unbalanced)..
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BETAFPV ELRS LiteRadio 2 SE Radio Transmitter Remote Controller with Built-in 1000mAh 1S Battery for FPV RC Racing Drones Multirotor Sim Joystick Calibration - Mode 2 Left Throttle

  • ...radio controller. It comes with build-in ELRS 2.4G TX, which can achieve long-range flying with your drones.
  • 【BETAFPV Configurator】This transmitter supported BETAFPV Configuration with the function of radio controller setup, Full function of the ExpressLRS configuration, Channel mixer for fix wing drones, and firmware update.
  • 【Performance】This ELRS 2.4G protocol radio transmitter built-in 1000mAh 1S battery, you can charge it by type-c cable instead of replacing battery. It has a total of 8 channels. Supports 3 RF powers of 25mW, 50mW and 100mW, and packet rates of 50Hz, 150Hz, 250Hz and 500Hz.
  • 【FPV Simulator】This transmitter has the function of FPV simulator like other versions of LiteRadio 2, which can act as a USB Joystick when connected to a personal computer, suitable for FPV novices to play FPV simulators like EREADRONE.
  • 【About Bind】The stock firmware of the TX module manufactured by our company is ELRS V1.0.0-RC5(the fifth release candidate version) and the Lite receiver and Micro TX Module is V1.1.0.
  • Please note that the firmware version of the Transmitter and the receiver or the TX module should be the same one and then could be bound together. If you don't know the firmware version, please contact us directly and we will solve t....
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Beyerdynamic DT-880-PRO-250 Studio Reference Monitor Headphones+Amplifier Amp

  • ... 250 ohms. Headphone frequency response 5 - 35.000 Hz. Nominal sound pressure level 96 dB. Construction Circum-aural (around the ear). Cable & plug Coiled connecting cable with mini-jack plug (3.5 mm) & adapter (6.35 mm). Net weight without packaging 295 g.
  • Click Here To View The Specification Sheet (Link Opens In A New Tab). Click Here To View The User Manual (Link Opens In A New Tab). Includes: (1) x headphone amp. (1) x Micro USB cable.
  • (1) 3.5mm male to male audio jack cable. Manual and warranty card. Features: RockvilIe HeadRock Battery Powered Rechargeable Personal Headphone Amplifier. 3.5MM headphone output. 3.5MM aux input for music player. Lithium Battery with 800mAh capacity. Rechargable battery lasts 5-8 hours per charge. Headphone Amplifier Works with 16 300 Ohm Impedance. Headphone output power: 65mW@16O 89mW@32O 95mW@64O 69mW@120O 29mW@300O. High/Low gain switch. Volume control. 300mv - 2000mv.
  • Strong aluminum case ensures long life and strong heat dissipation. Chipset: NE5532. THD: 0.0001%. Signal to Noise Ratio: 125dB. Frequency Response: odB (20Hz-20kHz). AMP Internal Voltage: 8V / 500mA. DC power Charging: 5V 1A. Weight: 0.17 lbs. Dimension (inches): 3.74 x 2.09 x 0.5 ( L X W X H).
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Superlux HD-681 EVO Professional Monitoring Headphones, White

  • Driver Unit: 50mm dynamic type / neodymium magnet adoption.
  • Sensitivity: 98dB SPL / 1mW, reproduction frequency band: 10 ~ 30000Hz.
  • Cable: detachable straight cable from the headphones, two accessories of 1m and 3m, connector: 3.5mmφ gold-plated stereo mini plug.
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RockvilIe RWM1203VH Wireless (2) Handheld Microphones 4 Church Sound Systems

  • ...t or more, Channel: Two Channel, Frequency Range: 210MHz - 270MHz, Frequency Response: 40Hz-18KHz, S/N.:>103dB (1KHz-A), Operating Temp: 14°F – 122°F, Oscillation Mode: Quartz Crystal, Frequency Stability: ±0.005%, Harmonic Radiation :< 63dBm.
  • RF Output Power: 10mW, Power Voltage: AC110V- 60Hz, Mic Battery: AA x 2, Receiver: Sensitivity: (S/N=30dB) >2mV, Audio Output Impedance: 600O, Audio Output Level.: 0-0.5V, Power Supply: AC110V 60Hz, Current Consumption: =50mA, Audio Out Connector: 1/4" unbalanced, Transmitter: Frequency Stability: ±0.005%, RF Output Power: =10mW.
  • Modulation Mode: Maximum Deviation Range: ±50KHz, Microphone Mode: Fixed, Power Supply: AA/1.5V×2, Current Consumption: =35mA.
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Rockville RWM1203VH VHF Wireless Dual Handheld Microphone System/Digital Display

  • ...ing Range: 150 feet or more. Channel: Two Channel. Frequency Range: 210MHz - 270MHz. Frequency Response: 40Hz-18KHz. S/N. : 003e103dB (1KHz-A)..
  • Operating Temp: 14° F 122° F. Oscillation Mode: Quartz Crystal. Frequency Stability: ± 0. 005%. Modulation Mode: VHF. Harmonic Radiation : 003c 63dBm..
  • RF Output Power: 10mW. Power Voltage: AC110V- 60Hz. Mic Battery: AA x 2. Sensitivity: (S/N=30dB) 003e2mV. Audio Output Impedance: 600Ω . Audio Output Level. : 0-0. 5V..
  • Power Supply: AC110V 60Hz. Current Consumption: ≤ 50mA. Audio Out Connector: 1/4" unbalanced. Transmitter: Frequency Stability: ± 0. 005%. RF Output Power: ≤ 10mW..
  • Modulation Mode: VHF. Maximum Deviation Range: ± 50KHz. Microphone Mode: Fixed. Power Supply: AA/1. 5V× 2. Current Consumption: ≤ 35mA..
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D YEDEMC SM&MM Automatic Intelligent Optical Fiber Fusion Splicer Optical Fiber Welding Splicing Machine (Ai-9) & Fiber Cleaver Kit …

  • 3 In 1 Fiber Holder suit for SM, MM, bare fiber, pigtail, rubber-insulated, multi fiber cable.
  • Splice Loss:0.025dB(SM)、0.01dB(MM)、0.04dB(DS/NZDS).
  • Fiber diameter:Cladding Diameter：80-150μm、Coating Diameter：100-1000μm.
  • Fiber Cleave Length:Coating less than 250µm：8-16mm、Coating less than 250-1000µm:16mm..
  • Built-In power meter (Wavelength 850nm/1300nm/1310nm/1490nm/1550nm/1625nm).
  • Built-in Visual Fault Locator:Power:15mw,2hz flashing And Constantly Bright Mode..
  • With 5-inch 800x480 high-resolution screen, is up to 300 times focus magnifications.
  • 5s fast splicing 15s fast heating.Once splicing reaches to 50,000 times free replacement a new machine.
  • Through the phone app, splicing is easy to operate.10 Languages to switch freely :English,french,Russion,Italian,Portuguese,Polish,Spanish,Thai,Arabic.
  • Lifetime Friendly Customer Service,if have problem,pls contact us using the amazon message box,we will solve your problem in time and must give you a satisfactory solution .At the same time,you also need a little patience..
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