Description: Low latency: This Bluetooth-compatible module features 5.2 version, which ensures fast transmission, providing better audio quality. Precisely produced: This headphone upgrade module is designed for 2-pin 0.75mm wired earphones that come with detachable cables. Rechargeable: The for TWS earphone upgrade adapter is designed with a charging bin, which is convenient for you to for recharge modules after use. Noise reduction: The in-ear headphone module features noise-concealing, providing clear sound quality, perfect for music and communication. Wide applications: This Bluetooth-compatible module is perfect for most types of mobile phones, tablets, laptops, computers, and other Bluetooth-compatible enabled devices. Specification: Color: Black. Material: Plastic. Linkage: Wireless. Bluetooth-Compatible Version: 5.2. Transmission Range: Approx. 15m/49.21ft. Earhook Battery Capacity: 50mAh. Charging Bin Battery Capacity: 800mAh. Compatibility: Replacement for KZ-ZSN/ZAS/ZS10pro/DQ6 and other headphones. Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Earphones are not included. Package Includes: 2 Pieces Bluetooth-Compatible Module Ear Hooks (with 1 Piece Charging Bin, 1 Piece Cable, 1 Piece User Manual).