-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

– 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)

• Bluetooth Version: V5.0
• Play Modes: Bluetooth, AUX, USB Flash Disk
• Drive Units: 58mm 40
• Rated Output Power: 25W x2
• SNR: >90dB
• THD: <10%
• Frequency Response Range: 60Hz-20KHz
• Transmission Distance of Bluetooth: >10m

Bluetooth Version: 5.2

Supported Protocols: HSP, HFP, A2DP, AVRCP

Battery Capacity of Single Earbud: 45mAh Battery

Capacity of Charging Case: 650mAh

Standby Time: 300h

Color: Black

Best Transmission Distance ＜1M Maximum

Transmission Distance: 10M

Voice Prompt: Support

Impedance: 32Ω Sensitivity: 114dB

Noise Reduction Depth: 23dB±2

Bluetooth Frequency: 2.402G-2.480G

Multipoint Connection: Nonsupport

Wearing Style: In-Ear

★Charging Time: 1H

★Talk Time: 8H

★Play Time: 7H

★Standby Time: 300H

Bluetooth version V4.1

Stand by time 96 hours

Talk time 4 hours

Charge time 1 hour.

Plug Size: 3.5mm
Speaker Size: 11.5mm
Sensitivity: 110dB ± 3dB
Impedance: 16ohms ± 15%
Frequency: 20-20,000Hz
Net Weight: 33g/ 1.16oz
Cable Length: 126cm/ 49.61in