• Mini Wireless Speaker
• Bluetooth V5.0
• TWS interconnection
• Waterproof IPX6
• Rope design
• Can pair 2 speaker at the same time
• Speaker specification: 45mm
• Calling power: RMS 5W
• Rated output power: 4W
• Charging voltage: 5V/1A
• Signal to noise ratio: > 80dB
• Distortion:≤10
• Frequency response range: 80hz-18.5kh
• Battery capacity: 800MAH /3.7V
• Low frequency radiator: 50 X 30mm
• Working hours: >6 hours
• Charging time: about 1.5 hours
• Bluetooth transmission distance:> 10m

Cable Length: 1.2m Jack Type: Type-C
Color: Black
Drive Unit: 10mm
Sensitivity: 92dB±3dB
Impedance: 16Ω
Drive-By-Wire: Yes
Frequency Response Range:20-20000HZ
Functions: Voice Call, Adjust Volume, Switch Songs
Sound Channel: Stereo
Net Weight: 21g

– Bluetooth version: v5.0
– Frequency range: 20-20000Hz
– Max. battery life: 3.5h
– Battery capacity: 300mAh (charging case); 40mAh (per earphone)
– Water resistance rating: IPX4
– Dimensions: 7.50 x 3.00 x 4.00cm

1. Bluetooth version 5.0, Jerry solution
2. LED digital display, fast charging
3. TWS binaural mode, automatic matching and interconnection
4. Charging compartment battery: 500mAh/3.7V, earplug battery: 45mAh/3.7V
5. 4 hours of talk time, 3.5 hours of music playback, 2 hours of charging time, 300 hours of standby time
6. 10 meters transmission distance, portable storage, not easy to lose

-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