1. Using stable performance chip.
2. Built-in 220mA lithium battery ...
1. Using stable performance chip.
2. Built-in 220mA lithium battery ...
1. Using stable performance chip.
2. Built-in 220mA lithium battery ...
1. Using stable performance chip.
2. Built-in 220mA lithium battery ...
1. Adopt high-quality chips with stable performance.
2. Built-in 150mA ...
1. Adopt high-quality chips with stable performance.
2. Built-in 150mA ...
1. Adopt high-quality chips with stable performance.
2. Built-in 150mA ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. BT 3.0 standard interface
2. Effective operating distance ...
1. Bluetooth 3.0 standard interface
2. Effective operating distance ...
1. Bluetooth 3.0 standard interface
2. Effective operating distance ...
1. Bluetooth 3.0 standard interface
2. Effective operating distance ...