Bluetooth 3.5 mm

QCY ANC H4 wireless earphones (white)QCY H4 provide an amazing sound experience. Equipped with 40-millimeter drivers, they reproduce sound of the highest quality, certified by Hi-Res Audio. Active noise cancellation technology effectively eliminates outside sounds, allowing you to focus on what matters most. They allow music playback for up to 70 hours, and dual microphones combined with ENC guarantee clear phone calls. You'll connect them to the device of your choice either wired or wirelessly. The dedicated QCY app will allow you to customize the sound settings for any type of music.Top-quality soundWith the QCY H4, you'll experience sound like you've never heard before. With 40mm drivers and a wide frequency response of up to 40kHz, the QCY H4s deliver incredibly clear and precise sound. They are also Hi-Res Audio certified to reproduce studio-quality sound. Now you can hear every detail of your favorite songs - from deep bass to the highest tones.Forget the noiseImmerse yourself in the sounds of music or focus on your work, no matter where you are. With ANC technology, the earphones reduce ambient noise to as much as 43 dB. That means you can enjoy your music without the distracting sounds of the street, office or other distractions. The QCY H4 also offers four ANC modes, which vary in the level of muting of outside sounds. There's also an Ambient Sound mode, which allows you to stay in touch with your surroundings without removing the earphones, which is useful in city traffic, for example.Listen without interruptionThe QCY H4 are ready to accompany you for days without interruption, no matter how intensively you use them. They feature a 600 mAh battery that provides up to 60 hours of use with ANC mode on, or up to 70 hours with ANC off. That's enough time to watch 35 movies or play 1,050 songs of music!Talk without distractionsWhether you're having an important business conversation or chatting with friends, you can always count on excellent sound quality with the QCY H4. The earphones are equipped with dual microphones that accurately capture your voice, ensuring that it sounds clear and natural. They also use ENC technology, which eliminates background sound interference during conversations.Stable connection with low latencyLet your music accompany you wherever you go. The earphones use Bluetooth 5.1, which offers a fast and stable connection to your device with a range of up to 10 meters. The low latency of only 0.08 seconds in gaming mode ensures that the sound is perfectly synchronized with the video, which is extremely important when playing online.Take calls while watching moviesThe QCY H4s allow you to connect to two devices simultaneously. This allows you to listen to music from your laptop and take calls from your phone, without having to constantly switch calls or disconnect and reconnect. Are you watching a movie on your tablet and your phone suddenly starts ringing? Just double-tap the earphones to answer the call!Convenience firstThe earphones were created with your comfort in mind. Soft earcups made of synthetic protein leather perfectly fit the shape of your ears, reducing pressure. As a result, you don't have to worry about discomfort even during hours of listening. The foldable design means you can take them with you wherever you want - they won't take up much space in your backpack. The QCY H4 also settles with intuitive buttons that will allow you to adjust the volume, switch songs, answer and reject calls - all without having to pull out your phone.Included earphones USB-C to USB-A cable 3.5mm audio cable user manual Manufacturer QCY Model H4 Color White Type of headphones In-ear Transducers 40 mm Frequency response 40 kHz Bluetooth version 5.1 Range Up to 10 m Bluetooth profile A2DP / AVRCP / HFP Connection type Wireless and wired - 3.5 mm audio cable Battery capacity 600 mAh Operating time Up to 60h (with ANC on) Up to 70h (with ANC off) Charging time Up to 2h Charging interface USB-C App QCY App

Shelly 1 Mini Gen4 Controller Zigbee/MatterThe Shelly 1 Mini Gen4 is a powerful relay controller that, despite its small size (29 x 34 x 16 mm), offers support for multiple communication standards, including Wi-Fi, Zigbee, Bluetooth and Matter. It can be mounted in junction boxes, behind outlets and in areas where mounting space is limited. Thanks to its potential-free contacts, the device can be used in applications that require galvanic separation of circuits, such as for controlling a gate, relay, bell or automation system regardless of their operating voltage. It also supports schedules, scenes, scripts and integrates with home automation systems such as Google Home, Alexa, and Samsung SmartThings.Extensive connectivity and Matter protocol compatibilityThe Shelly 1 Mini Gen4 controller offers communication via Wi-Fi (802.11 b/g/n), Zigbee (802.15.4) and Bluetooth 5.0. The device also acts as a BLE gateway and Wi-Fi and Zigbee signal booster for other IoT devices. Thanks to its compatibility with the Matter protocol, it can be integrated into any ecosystem that supports the standard, which increases its versatility and simplifies configuration in a variety of home environments.Potential-free contacts and operation with different voltagesThe Shelly 1 Mini Gen4 has the advantage of being able to control both low-voltage (30 VDC) and mains-powered (up to 240 VAC) devices. Thanks to the presence of a potential-free contact (dry contact), it can also be used in situations requiring an isolated relay, such as controlling gates, bells or lighting.Advanced scheduling and scene functionsThe Shelly 1 Mini Gen model allows you to set as many as 20 schedules, so you can schedule equipment to automatically turn on or off at specific times on selected days of the week. In addition, it supports the creation of scenes, i.e. sets of actions triggered simultaneously or sequentially in response to an event, such as turning on several devices when motion is detected. Schedules and scenes are configured using the Shelly Smart Control app, available free of charge for mobile devices and computers.Integrations and full local or remote controlThe device can be integrated not only with systems from major voice assistant manufacturers, but also with local systems via HTTP/HTTPS, MQTT, WebHooks or KNX net/IP APIs. Shelly 1 Mini Gen4 works both locally (without access to the cloud) and over the Internet, allowing full control regardless of where the user is. A built-in web interface allows direct configuration from a browser.High installation flexibilityThe controller's housing is made of plastic and allows installation in installation boxes. Despite its compact size, the device houses an advanced ESP-Shelly-C68F microcontroller with 8 MB of flash memory, allowing it to handle scripting and real-time functions. General Manufacturer Shelly Model 1MiniGen4 Physical parameters Dimensions 29 x 34 x 16 ±0.5 mm / 1.34 x 1.11 x 0.63 ±0.02 inches Weight 19 ±1 g / 0.65 ±0.04 oz Maximum tightening torque of screw terminals 0.4 Nm / 3.5 lbin Cable cross section 0.2 to 2.5 mm² / 24 to 14 AWG (solid wire, multi-stranded wire, bushings) Wire stripping length 6 to 7 mm / 0.24 to 0.28 in. Mounting Wall box Housing material Plastic Housing color Blue Connector color Gray Environmental conditions Operating temperature -20°C to 40°C / -5°F to 105°F Operating humidity 30% to 70% RH Maximum altitude. 2000 m / 6562 ft Electrical parameters Power supply 110 - 240 VAC Relay Potential-free, NO contact, 1-pole, µ contact Power consumption < 1.2 W External protection Tripping characteristic B or C, rated current max. 10 A, breaking capacity min. 6 kA, energy limitation class 3 Output circuit parameters Maximum switching voltage 240 VAC / 30 VDC Maximum switching current 8 A / 240 VAC, 5 A / 30 VDC Maximum output power 2000 W / 240 VAC, 150 W / 30 VDC Overvoltage protection None Current protection None Over-power protection None Sensors and measurements Internal temperature sens