Features:

• Upgraded digital noise reduction scheme
  Noise reduction depth is better, -25dB. Noise reduction bandwidth is wider, 50Hz-2k Hz
• Bluetooth 5.0 Solution
  Efficient and stable wireless transmission enable you to enjoy music indoors and outdoors.
• Flexible liquid silicone
  Softer material, more skin-friendly texture, more comfortable wearing.
• Flat mouth sound hole design
  Better sealing without sound leaking

Specifications:

• Brand: Rock Space
• Model: B3
• Bluetooth Version: V 5.0
• Working Distance: Appr. 10m
• Frequency Response: 20Hz-20kHz
• Noise reduction bandwidth: 50Hz-2kHz
• Play Time: Appr. 11 hrs (Appr. 8hrs under ANC + BT)
• Charging Time: Appr. 2 hrs
• Battery Capacity: 260mAh/O.96Wh
• Material: alloy, ABS , Silicone
• Weight: Appr. 35g