-Model number: A770BL
– Bluetooth version: 5.0
– Battery capacity: 250mAh
– Standby time: up to 25h
– Talking time: up to 10h
– Playing time: up to 13h
– Charging time: 1h
– Transmission distance: up to 10m
– Frequency response: 20-20kHz
– Connectivity: Bluetooth, 3,5mm aux-in

Impedance: 16 ohm
Sensitivity: 90dB
Cable length: 1.2m

• Frequency response (headphones): 10 Hz – 20 kHz

• Total harmonic distortion: <0.1%
• Impedance: 16 ohm
• Plug: 24K gold-plated 3.5 mm, straight

• Cable length: 1.4 m

• Frequency response (microphone): 80 Hz – 15 kHz
• Pickup mode (headphones and microphone): full
• Mike Sensitivity: – 40 dBV / Pa
• Weight: 98 grams

– AM/FM/SW 1-2Receiver

– USB / TF Function

– MP3 Music Player

– Rechargeable Battery

– Blue – Connect

– Aux In Jack

– Remote Control

– External DC 9V In Jack

– Solar Panel 12V In Jack

– Wireless Connection

– AC/DC Operation

– DC : 9V (UM-1×6)