Main Features:
● Noise reduction technology to isolated from background noise and provided high-quality music.
● Built-in FM stereo radio can store 20 channels program.
● Support TF card, adjust size.

Specification:
Transmission Distance: 10m
Frequency Response: 20 - 20KHz
Operating Voltage: 3.7V
Output Power: 10mW
Impedance: 32 ohms
SNR: 85dB
Charging Time: Above 2 hours
Talking Time: About 8 hours
Battery: Li-ion 300mAh battery Function: Answering Phone,FM function,MP3 player,Noise Cancelling,Song Switching
Language: English
Material: ABS Connectivity : Wired and Wireless
Connecting interface: 2.5mm
Application: Computer,Mobile phone,Portable Media Player,Sport
Impedance: 32ohms External Memory: TF card 0.271 Package weight: 0.309 kg
Package size (L x W x H): 19.50 x 4.50 x 20.00 cm / 7.68 x 1.77 x 7.87 inches Package Contents: 1 x Zealot ZL 900 Headphone, 1 x USB Cable, 1 x Bilingual User Manual in Chinese and English