FONENG BL138  In-Ear Bluetooth Earbuds Technical Specifications:

• Sound Output: In-ear
• Material: PC, Silica gel
• Frequency Response: 20Hz–20KHz
• Colors: Black
• Bluetooth Version: 5.3
• Charge Input: Type-C
• Connection Range: 10m
• App Support: No

Battery Information:

• Battery Capability: Per earbud: 25 mAh and Charging case: 250 mAh
• Music Time: Single ear maximum 4-5 hours
• BT-Calling Time: Single ear maximum 4h hours
• StandBy time: 12h
• Charging time:1.5H with type C