Specifications of FONENG BL135 Half-In-Ear Ultra Thin TWS Earbuds

Detailed Technical Specifications

Model Identification

• Model Number: BL135
• Available Colors: Black

Bluetooth Connectivity

• Bluetooth Version: 5.3
• Supported Bluetooth Protocols: 
  • HFP (Hands-Free Profile)
  • HSP (Headset Profile)
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Video Remote Control Profile)
  • SPP (Serial Port Profile)
  • PBAP (Phone Book Access Profile)
  • TWS+ (True Wireless Stereo Plus)
• Bluetooth Transmission Distance: 10 Meters

Battery Performance

Earphone Battery

• Voltage: 3.7V
• Capacity: 25mAh (with protection board)
• Continuous Music Playback: Up to 5 hours

Charging Case Battery

• Voltage: 3.7V
• Capacity: 250mAh (with protection board)
• Total Battery Life: Up to 12 hours

Charging Specifications

• Charging Port: Type-C
• Battery Box Charging Time: Approximately 2 hours

Design Characteristics

• Form Factor: Half-In-Ear
• Design Highlight: Ultra Thin Profile
• Compatibility: Universal smartphone and audio device support

Additional Technical Details

• Chipset: JL7023
• Audio Performance: Designed for clear, crisp sound reproduction
• Wearing Style: Ergonomic semi-in-ear design for comfort

Package Contents (Typical)

• 2 × Ultra Thin TWS Earbuds
• 1 × Compact Charging Case
• 1 × Type-C Charging Cable
• Multiple Ear Tip Sizes
• User Manual

Key Features

• True Wireless Stereo (TWS) technology
• Quick and stable Bluetooth pairing
• Lightweight and portable design
• Suitable for music, calls, and daily use

Potential Use Cases

• Daily commuting
• Fitness and exercise
• Office and remote work
• Casual listening

This specification sheet provides a comprehensive overview of the FONENG BL135 Half-In-Ear Ultra Thin TWS Earbuds, highlighting its technical capabilities, design innovation, and user-friendly features.