dura MOBI Pillow Speaker Bone Conduction BT5.0 $14.99 (~A$23.56) AU Warehouse @ Tomtop

Specification：
Chip: Version 5.0 Support MP3-8GB memory
Receiving distance: within 10 meters
Signal-to-noise ratio: >75dB
Distortion: <1%
Working frequency: 500HZ – 40,00 HZ
Horn diameter: 20.8 mm
Speaker Impedance: 8 ohm
Speaker power: 2W *2
Charging input voltage: DC5±0.25V
Battery Specifications: 3.7V/400mAh
Working voltage: 3.7V (3.3-4.2V)
Charging time: ≤3H
Microphone sensitivity: -42±3DB
Low voltage prompt: 3.0V
Speaker specifications: 16Ω±15%
Continuous play music time: 8H-12H
Standby connection time: ≥200H
Working current: ≤30mA (the bigger the volume, the bigger the current)
Quiescent current: ≤5uA
Pairing Name: PillowSPEAKER
Pairing code: 0000 (phones lower than V2.1)