• Bluetooth-compatible 5.3, faster transmission, more stable connection, stronger signal better anti-interference
• Newly upgraded cabin and headphone signal lights, mini and small, transparent beauty
• Φ13mm PU composite diaphragm provides clear and truly sound
• With a strap, you can take it everywhere you go and keep it in place around your neck

Specifications:

• Material: PC + ABS + silicone
• Bluetooth-compatible chip & version: JL V5.3
• Frequency response: 20Hz-20KHz
• Sensitivity: 103db SPL± 3db
• Support agreement: HSP / HFP / A2DP / AVRCP
• Standby time: about 90 days
• Working time: about 5 hours
• Battery: charging bin 180mAh/single earbud 30mAh*2