• Latest Bluetooth-compatible 5.3 technology, easy and fast pairing with smartphones, tablets and other Bluetooth-enabled music devices
• The built-in rechargeable lithium battery has long endurance, no power anxiety
• Ergonomic design, comfortable to wear, foldable and lightweight, convenient for carrying and storage
• 40mm high-quality diaphragm, brings excellent music experience
• With a hidden noise reduction microphone, effective noise filtering
• Designed with cool and beautiful RGB light
• Bluetooth-compatible and wired connection dual mode, convenient to use

Specifications:

• Model: B3
• Bluetooth-compatible version: 5.3
• Driver diameter: 40mm
• Chipset: 7006F4
• Supported protocols: AVRCP1.4, A2DP1.2, HFP1.6, HSP1.2
• Audio decoding: WMA, APE, FLAC, AAC, M4A, WAV, AIF, AIFC
• Bluetooth-compatible distance: 10m
• Frequency: 2.402GHz-2.480GHz
• Microphone sensitivity: -42±3DB
• Sensitivity: 116±4dB
• Impedance: 32 ohms
• Frequency response range: 20HZ-20KHZ
• Battery capacity: 800mAh
• Play time: about 6 hours
• Audio delay: 40-60mS
• Charging time: about 1.5 hours
• Cable length: Charging cable: 3.0*450mm, adapter cable: 3.5*1200mm