* Bluetooth version: 5.4.
* ENC microphone: Noise cancellation technology ensures high-quality transmission.
* HD sound: Excellent sound thanks to a modern Bluetooth chip and high-quality dynamic radiator.
* Li-Pol battery 140 mAh: Enough for 30 hours of playback and up to 180 hours in standby mode.
* The headphones are securely attached to clothes using a clip.
* LCD screen: Informs about the current battery level.
* Volume control buttons and call answering.
* The headphones are fully compatible with all Bluetooth devices of any version.
* Bluetooth profiles: A2DP, AVCTP, AVDTP, AVRCP, HFP, SPP, SMP, ATT, GAP, GATT, RFCOMM, SDP, L2CAP.
* Bluetooth frequency: 2402-2480 MHz.
* Bluetooth chipset: Jelly AD6976D4.
* Input power: 5V/1A.
* Frequency range: 20-20000 HZ.
* Charging time: 30 minutes.
* Standby time: 180 days.
* Playback time: 80% volume - 30 hours, maximum volume - 22 hours.
* Battery type: Li-Pol.
* Battery capacity: 140 mAh.
* Working distance: 10 meters.
* Input port type: USB-C.