Specification:

Cup bluetooth speaker

Microphone, support handsfree calling,TF 
Audio input: Bluetooth, Aux, Micro SD
Bluetooth version: V2.1 + EDR
Transmission distance: 10M
Output : 3W
Speaker unit: Diameter 40mm, magnetic 4Ω,3W +bass diaphram
Battery: 3.7V, 500mAh Li-ion battery
Charging Time: 2 hours
Playing Time:  3-4 hours
Charging Voltage: 5V ± 0.25V
Frequency Response: 100HZ-18KHZ
SNR: ≥85±2db
Material: Silicon rubber + grill
Dimension: 80x 50 X75 mm
Weight: 195g

Unique Selling Points:

Cup bluetooth speaker
Microphone, support handsfree calling,
Bluetooth, Aux, Micro SD
Micro SD, NFC is optional
CE, RoHS, BQB

What's in the package :

Speaker

USB cable

Aux cable

Manual

Carabiner