FreeMotion B400 Wireless Headphones with the Latest Bluetooth 5.3 Standard and an impressive playtime of up to 32 hours! The B400 wireless headphones with a detachable Bluetooth microphone stand out for their high-quality sound and very comfortable design with soft earpads. The latest Bluetooth 5.3 connection ensures stable and fast signal transmission, and if necessary, you can connect your device using a 3.5mm audio cable (included). Latest Bluetooth 5.3 Standard: The headphones connect to devices using the latest Bluetooth 5.3 standard. This significantly reduces power consumption and the device's operating range, allowing you to enjoy your favorite music even more conveniently. Pairing the headphones with your laptop, phone, or TV is quick and easy. Foldable Design: You can fold the headphones at any time to take up less space and be less susceptible to damage when carrying them in a bag or backpack. Wireless Bluetooth Headset The compact foldable design makes it easy to fold the headphones and take them with you. LED backlight (THE BACKLIGHT CAN BE TURNED OFF BY DOUBLE-PRESSING THE "POWER (ON)" BUTTON). The detachable microphone allows for high-quality sound transmission. MicroSD card slot. The Micro-SD memory card slot turns the headphones into an MP3 player - listen to music without connecting to a smartphone or laptop. Built-in equalizer (EQUALIZER) with 6 modes. Control buttons on the headphones. Allow you to answer a call or switch songs without touching the phone. Audio cable included. If the headset battery runs out, simply connect it to the cable and continue listening to music. Adjustable headband. Operating range up to 15 m. The headset allows you to talk on the phone or listen to internet radio from a laptop while moving freely up to 15 m. Battery life up to 32 hours of listening to music and calls. Defender FreeMotion Bluetooth Headphones See how fantastic your favorite songs can sound. The FreeMotion headphones are equipped with dynamic 40mm drivers that guarantee crystal-clear sound. Built-in microphones allow for convenient calls, and Bluetooth 5.3 ensures a quick connection to your device. Soft earpads and an ergonomic design ensure perfect comfort even during long hours of listening to music. Rediscover your favorite songs. These wireless headphones deliver exceptional sound. Equipped with 40mm dynamic drivers with a DLC diaphragm, they guarantee full, detailed sound and bass. Up to 32 hours of operation. Never again will you have to worry about your headphones turning off at the most inopportune moment. Thanks to a durable 800mAh battery, the Defender headphones offer impressive performance – up to 32 hours of playback with the backlight mode turned off. What's more, the headphones support fast charging, meaning that just 30 minutes of connecting the included USB-C cable will allow you to enjoy music for another 5 hours. Communication: Bluetooth 5.3 ; Headphone type: Full-coverage; Acoustic setting: Closed; battery capacity: 800 mA h; Mounting type: Headband; Bluetooth specification: V5.3 + EDR, A2DP, AVRCP, HFP, HSP; Radio frequency range: 2402 2480; Diaphragm diameter: 40 mm; Sensitivity (headphones): 118 dB; Sensitivity (microphone): 42 dB; Frequency range (headphones): 20 20000 Hz; Frequency range (microphone): 20 20000 Hz; Operating range: 0 15 m; Working time in talk / listening to music mode: up to 32 hours; Connectors: USB-TYPE C for battery charging (included); Headphone material: Plastic; Color: Black; .