st-424 cross-border head-mounted foldable luminous headset with microphone phone wireless bluetooth earphone headset ST-424跨境头戴式可折叠发光耳机带麦可通话手机无线蓝牙耳机耳麦

Product features: Volume +/-, up/down track switching, answer phone, mode switching, EQ switching

Feature Introduction: 1. Card insertion MP3 function, supports up to 128GB TF memory card.
2. FM Stereo Radio
3. Hands-free calls
4. Dual-purpose Bluetooth cable (can be used with a cable when the Bluetooth battery runs out), 3.5mm audio interface
Product type: Bluetooth headphones
Wearing method: Headset
Functionality: Wireless headphones, voice headphones
Bluetooth Version: V5.0
Supports Bluetooth protocols: A2DP, ARCP, HFP, HSP
Frequency Response: 20Hz–20KHz
Signal-to-noise ratio: 70dB
Battery capacity: 400mAH lithium battery
Normal charging time: <= 3 hours
Charging Port: Mini 5-pin micro USB interface
Call duration: Approximately 3 hours (maximum volume)
Product accessories: headphones, USB charging cable, 3.5mm male-to-male AUX audio cable
Packaging quantity: 50 sets per box