HY-D-739 Headphones

Bluetooth version: V5.0

Bluetooth Chip: JL

Audio range 2.402 GHZ – 2.480GHz

Emission range ≥ 20M

Mobile phones stereo music player

Music play time about 12 hours

Phones call time about 12 hours

Battery:3.7V/130mah

Speaker size: 10mm 32Ω

Microphone: -42dB

Output: 25mW*2

SNR:  ≥98dB

Colors: black, red, blue