• 40MM Movable coil unit: 40MM moving coil unit restores delicate audio details with its powerful performance, and the bass is rich and the treble is clear, which is like a live music experience
• Buttons operation: Easy buttons operation, you can switch the song, adjust the volume, and answer/hang up the call easily
• Breathable earmuffs: Soft earmuffs, skin-friendly and breathable, comfortable to wear
• Advanced Bluetooth-compatible chip: Fast and  stable connection, listening to music and playing games is clearer and smoother

Specifications:

• Product size: 20.5*19.5*4cm
• Bluetooth-compatible version: 5.3
• Chip type: BLUETRUM 5605B
• Battery type: polymer lithium battery
• Function: Bluetooth, AUX (3.5mm round hole), TF card, FM
• Battery capacity: 200mAh with protection board
• Charging time: about 2 hours
• Usage time: about 6-8 hours
• Standby time: about 120 hours
• Speaker: 40mm large dynamic coil
• Charging port: Type-C
• Transmission distance: barrier-free connection within 10 meters
• Transmission power: 5V1A
• Speaker sensitivity: 113+3dB
• Frequency range: 20-20000hz
• Signal-to-noise ratio: 88DB
• Impedance value: 32Ω