1. Bluetooth version: 5.3 (AD6973D4)
2. Channel: Stereo
3. Supported protocols: a2dp\avctp\avdtp\avrcp\hfp
4. Music playback time: 5h
5. Talk time: 4h
6. Headphone battery capacity: 30mAH (without protection board, headphone board lithium battery protection IC), Storage battery capacity: 500MAH (with protection board)
7. Charging time: 2h
8. Speaker: 13mm
9. Standby time: 300h
10. Speaker sensitivity: 114DB+-3DB
11. Input charging standard: DC 5V
12. Bluetooth operating frequency: 2.402GHz-2.480GHz
13. Maximum transmission distance: 10m
14. Voice prompt: supported
15. Multipoint connection: not supported
16. Wearing style: In-ear / semi-in-ear
Specification:
| Package Weight | 
| One Package Weight | 
0.21kgs / 0.47lb | 
 
 
 
| One Package Size | 
17cm * 12cm * 4cm / 6.69inch * 4.72inch * 1.57inch | 
 
 
 
| Carton Weight | 
17.80kgs / 39.24lb | 
 
 
 
| Carton Size | 
50cm * 42cm * 36cm / 19.69inch * 16.54inch * 14.17inch | 
 
 
 
| Loading Container | 
20GP: 352 cartons * 80 pcs = 28160 pcs 40HQ: 818 cartons * 80 pcs = 65440 pcs 
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