-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

Features of NIA WH-220 Bluetooth Headset

Pair and Play with your Bluetooth® device with 32.8′ range

Fine-tuned acoustics for clarity, breadth and balance

Instant music sharing

Take hands-free calls with a built-in microphone

4 in 1: Bluetooth headphones + FM + Micro SD/TF card player + Aux-in

Adjustable earcup for easy keeping

Ergonomically ON-EAR designed for optimal comfort

200 hours standby time to save you from charging

Brand : AWEI GM-1 / GM-2

Temperature : 10-55’C

Cable Length : 2100MM

Net Weight : About 30G

SNR : >110dB

THD : <1%(1KHz 0dB)

Output Power : 20mW (1KHz 0dB)

Bluetooth Version: 5.0
Battery Capacity: 300mAh
Play Time: 20h
Charging Time: 2h
Diameter: 40mm
Impedance: 32Ω
Sensitivity: 98±3dB at 1000HZ
Best Transmission Distance: ＜1M
Maximum Transmission Distance: 10M
Wearing Method: Head-Mounted

KSC-834 YUETENG series TWS wireless stereo headphones, microphone ENC noise reduction; Bluetooth 5.1, fully compatible; clear calls and comfortable in-ear; smart touch; long standby, long battery life; weight: 46.8g; charging interface: Type-C