Features:
Built-in NFC function. Just use your phone to touch the speaker and then connect to Bluetooth.
Built-in microphone， hands-free call. it is convenient.
Can connect to devices at the same time. Free to switch between two phones.
There is a AUX line-in port， it still can connect to device when there is no Bluetooth function.
Specifications:
| General Specification | |
| Brand Name | ROCK |
| Color | Fluorescent green， Pink， Blue， Grey |
| Product Weight (kg) | 320g |
| Dimensions (cm/ inch) | 182mm*60mm*32mm |
| Technical Parameters | |
| Connectivity | Bluetooth |
| Output Power | 10W max. |
| Mic Specification | 4015 -42±3dB |
| Driver Unit | Φ40mm 4Ω 4W*2 |
| Bluetooth Frequency | 2400.0-2483.5MHz |
| Bluetooth Central Frequency | 2441.000MHz |
| Sensitivity | 75±3dB average at 600，800， 1000， 1200Hz |
| Battery Capacity | 3.7V 1500mAh |
| Standby Time | <24h |
| Talk Time | 3-4h |
| Charging Time | <2h |
| Bluetooth Version | 4.0 |
| Bluetooth Chip | CSR8635 |
| Transmission Range | <10m |
Package Included:
 | 1 X ROCK Bluetooth Speaker |
| 1 X Charging Cable | |
| 1 AUX Audio Cable | |
| 1 X Storage Bag | |
| 1 X English Manual |