TOMTOP Technology DA109 Wireless Stereo Sports In-Ear Headphone User Manual DA129
Shenzhen TOMTOP Technology Co., Ltd. Wireless Stereo Sports In-Ear Headphone DA129
User Manual

This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.