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The controversial book linking intelligence to class and race in modern society, and what public policy can do to mitigate socioeconomic differences in IQ, birth rate, crime, fertility, welfare, and poverty.

- USB Dynamic Microphone with Onboard DSP - XLR Output - Silver - Headphone Output - Adjustable Gain

Color: Silver

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Join the technological revolution that’s taking the financial world by storm. Mastering Bitcoin is your guide through the seemingly complex world of bitcoin, providing the knowledge you need to participate in the internet of money. Whether you’re building the next killer app, investing in a startup, or simply curious about the technology, this revised and expanded second edition provides essential detail to get you started. Bitcoin, the first successful decentralized digital currency, is still in its early stages and yet it’s already spawned a multi-billion-dollar global economy open to anyone with the knowledge and passion to participate. Mastering Bitcoin provides the knowledge. You simply supply the passion. The second edition includes: * A broad introduction of bitcoin and its underlying blockchain—ideal for non-technical users, investors, and business executives * An explanation of the technical foundations of bitcoin and cryptographic currencies for developers, engineers, and software and systems architects * Details of the bitcoin decentralized network, peer-to-peer architecture, transaction lifecycle, and security principles * New developments such as Segregated Witness, Payment Channels, and Lightning Network * A deep dive into blockchain applications, including how to combine the building blocks offered by this platform into higher-level applications * User stories, analogies, examples, and code snippets illustrating key technical concepts

- [Pickup system]: AODSK electric guitar features 5 types of pickup switches and 2 types of tone and volume controls to choose from. It is suitable for both beginners and professionals, accommodating a wide variety of musical styles - [Full Size Electric Guitar kit]: Your electric guitar set comes ready to play right out of the box.No need to buy any additional accessories, this full set comes with an amplifier and guitar cable, high-quality guitar bag, electronic tuner, 6 spare strings, guitar picks, whammy bar, capo, cleaning cloth, and guitar strap - [Electric Guitar Amplifier]: The beginners set includes a 5W amplifier with built-in dual speakers, headphone jack, and AUX input for playing music on your phone or MP3 player. The amplifier also features charging and Bluetooth capabilities for convenient use when you're out and about. It also has gain and reverb functions - [Quality Materials]: Custom-designed and handcrafted laurel fingerboard and birch neck. It translates vibrations into the rich, classic tones in the guitar through 3 pickups. The design of the C -type neck is more comfortable. The tremolo bridge system allows you to bend the pitch while playing, and the detachable tremolo arm produces a tremolo effect. Overall dimensions: 46.45*14.96*3.14 inches - [Holiday Gift]: Musical instruments and music-related gifts can not only meet the needs of music lovers,but also add a special atmosphere to the festival.Therefore,this product is a good choice for Christmas gifts,birthday gifts,and New Year gifts

Color: White-HSS

- [Pure & Natural] The USB cardioid mic captures the clear and crisp sound in front of the mic capsule and reduces unwanted background noise. Using this directional condenser mic in a quiet environment will bring you the ideal recording effect and has an accurate reproduction of your voice. - [All Metal Construction] Made out of solid, quality materials, the microphone for computer recording is built to last. It also finished in a very nice matte blue coating which gives a real premium look and feel to the K669L. The 6ft permanently attached USB cable is long enough to connect the usb audio mic to your pc. - [Easy to Setup] To attach the tripod, it's just connecting and twisting. The laptop mic for recording lets you adjust and pivot the mic in relation to the sound source, which optimizes your sound quality. Good for starting out a podcast, vlogging recording vocals singing or instrument. - [Plug & Play] No need any sound card or driver using this external mic. Compatible with PS4, Mac or Windows. Just plug it in, select it as the input mic of your application, that’s it. You can adjust the mic gain on the front to get good clarify of your voice. Improves audio recording on YouTube or recording software Audacity. (Incompatible with Xbox. ) - [You Will Get] The package comes with a desktop microphone with 6ft usb cable, pivot mount, tripod stand and user’s manual. This microphone for youtuber doesn’t need the 48v phantom power, but if your laptop only has USB C port, you will need a genuine lightning adapter for connection.

Color: Blue

- [Sounds fuller and richer] This external laptop microphone is a welcome improvement in the virtual meeting environment, providing increased clarity and greater noise reduction. You can easy to be heard and understood, and will be more relaxed and comfortable during conferences. - [Plug & play] Recognized both in pc and laptop immediately, this computer conference mic works well for Zoom, WebEx, Teams, Discord and making videos. The stand up mic doesn't take up much space for work from home situations, and is convenient for traveling. (Incompatible with Xbox.) - [Easy control & adjustment] The knob on the front of the desk mic comes in handy to increase / reduce sound. You can also turn it all the way down to mute the mic. With the help of the included pivot mount, you can quickly adjust the angle and position of the mic for zoom meetings or chatting. - [Multipurpose] The directional condenser mic is sensitive that it picks up your faintest whisper. For online meeting and web calls you can leave the pc mic closer to your monitor and still facing you. For recorded talks and lectures you can pull it to the front edge of your desk and it's not in the camera's view at all. - [You will get] The package comes with a computer microphone with pivot mount, 6ft non-detachable usb cable, a tripod stand and user’s manual. The silver microphone has a clean look and will match with your laptop and other setup in the home office very well. (Note: If your laptop only has USB C port, you will need a genuine lightning adapter for connection.)

Color: Silver

Join the technological revolution that's taking the financial world by storm. Mastering Bitcoin is your guide through the seemingly complex world of Bitcoin, providing the knowledge you need to participate in the internet of money. Whether you're building the next killer app, investing in a startup, or simply curious about the technology, this revised and expanded third edition provides essential detail to get you started. Bitcoin, the first successful decentralized digital currency, has already spawned a multibillion-dollar global economy open to anyone with the knowledge and passion to participate. Mastering Bitcoin provides the knowledge. You supply the passion. The third edition includes: * A broad introduction to Bitcoin and its underlying blockchain—ideal for nontechnical users, investors, and business executives * An explanation of Bitcoin's technical foundation and cryptographic currency for developers, engineers, and software and systems architects * Details of the Bitcoin decentralized network, peer-to-peer architecture, transaction lifecycle, and security principles * New developments such as Taproot, Tapscript, Schnorr signatures, and the Lightning Network * A deep dive into Bitcoin applications, including how to combine the building blocks offered by this platform into powerful new tools * User stories, analogies, examples, and code snippets illustrating key technical concepts

- 1. Alta calidad: hecho de excelente tecnología y materiales de polipropileno, duradero y fuerte. - 2. Características del diseño: diseño ergonómico, mantiene tu mano en una posición de escritura más natural y cómoda. - 3. Fácil de reemplazar: puede reemplazar tus patas de teclado dañadas, defectuosas, no funcionan. - 4. Aplicación: apto para teclado Logitech K200 K245 K270 K275 . - 5. Paquete: 4 patas blancas para teclado.

Tamaño: K200 K260 K270 K275-Blanco

- IN THE BOX: 25-foot XLR male to female microphone cable for XLR-compatible PA systems, speakers, and other sound equipment - CLEAR TRANSMISSION: All-copper conductors with inner copper spiral shielding to reduce noise interference - DURABLE DESIGN: Zinc alloy 3-pin connectors with nickeling; protective metal housing and flexible 6.0mm PVC jacket - USES: Designed for studio recording and live sound

Size: 25 Feet    Style: 1-Pack

- Custom three-capsule array: This professional USB mic produces clear, powerful, broadcast-quality sound for YouTube videos, Twitch game streaming, podcasting, Zoom meetings, music recording and more - Blue VO!CE software: Elevate your streamings and recordings with clear broadcast vocal sound and entertain your audience with enhanced effects, advanced modulation and HD audio samples - Four pickup patterns: Flexible cardioid, omni, bidirectional, and stereo pickup patterns allow you to record in ways that would normally require multiple mics, for vocals, instruments and podcasts - Onboard audio controls: Headphone volume, pattern selection, instant mute, and mic gain put you in charge of every level of the audio recording and streaming process - Positionable design: Pivot the mic in relation to the sound source to optimize your sound quality thanks to the adjustable desktop stand and track your voice in real time with no-latency monitoring - Plug 'n Play: Set up the computer microphone in seconds with the included desktop stand or connect directly to a mic stand or boom arm and instantly start recording and streaming on Mac or PC

Color: Midnight Blue

- Have the best-possible interactions with your peers, as if you were in the same room with Yeti, C922x Pro and Litra Glow, the ultimate set of tools to look and sound your best in every video-call - Yeti’s legendary Blue broadcast audio quality will make you sound incredibly clear during all your meetings - Yeti’s legendary Blue broadcast audio quality will make you sound incredibly clear during all your meetings - Litra Glow’s brilliant, daylight balanced LED light will bring premium lightning to your desktop, fast - With Blue VO!CE, block out unwanted noise and craft the perfect vocal sound for your work needs - Full HD glass lens and premium autofocus deliver razor sharp, clear video in consistent high definition - Litra Glow’s TrueSoft technology ensures you always look your best, delivering balanced, full-spectrum light with cinematic color accuracy for natural skin tones with no harsh shadows