Specification:
Signal ratio: 106DB
Dynamic range: 106DB
Battery capacity: 300MA/3.7V
Charging input: DV5V/1A
Battery energy: 3.7/WH
Battery life: Paly 3-4 hours when fully charged
Size: Approx. 7.5 x 3.5 x 1.1cm / 2.95 x 1.38 x 0.43inch
Package Weight: Approx. 107g

Package List:
1 * Audio Card
1 * Charging Cable
1 * 3.5mm Cable
1 * Instruction Manual

Note:
1. Due to manual measurement, please allow 1-3mm to be different.
2. Due to the difference in display and lighting, the picture may not display the actual color of the item. thank you for understanding.
3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.
4. The product needs to be equipped with a 3.5mm wired headset with microphone to receive sound.
5. You need to buy a for PHONE interface to 3.5mm headphone adapter for PHONE to use.